Chapter XV

Of the Advantages of the Love of Books

It transcends¹ the power of human intellect, however deeply it may have drunk of the Pegasean fount, to develop fully² the title of the present chapter. Though one should speak with the tongue of men and angels, though he should become a Mercury or Tully, though he should grow sweet with the milky³ eloquence⁴ of Livy, yet he will plead the stammering⁵ of Moses, or with Jeremiah will confess that he is but a boy and cannot speak, or will imitate Echo rebounding⁶ from the mountains. For we know that the love of books is the same thing as the love of wisdom, as was proved in the second chapter. Now this love is called by the Greek word philosophy, the whole virtue⁷ of which no created intelligence can comprehend; for she is believed to be the mother of all good things: Wisdom vii. She as a heavenly dew extinguishes the heats of fleshly vices⁸, the intense activity of the mental forces relaxing the vigour¹⁰ of the animal forces, and slothfulness being wholly put to flight, which being gone all the bows of Cupid are unstrung.

Hence Plato says in the Phaedo: The philosopher is manifest in this, that he dissevers the soul from communion with the body. Love, says Jerome, the knowledge of the scriptures¹², and thou wilt¹³ not love the vices of the flesh. The godlike Xenocrates showed this by the firmness of his reason, who was declared by the famous hetaera Phryne to be a statue and not a man, when all her blandishments could not shake his resolve, as Valerius Maximus relates at length. Our own Origen showed this also, who chose rather to be unsexed by the mutilation of himself, than to be made effeminate by the omnipotence¹⁴ of woman — though it was a hasty remedy, repugnant alike to nature and to virtue, whose place it is not to make men insensible to passion, but to slay¹⁵ with the dagger¹⁶ of reason the passions that spring from instinct.

Again, all who are smitten¹⁷ with the love of books think cheaply of the world and wealth; as Jerome says to Vigilantius: The same man cannot love both gold and books. And thus it has been said in verse:

No iron-stained hand is fit to handle books,
Nor he whose heart on gold so gladly looks:
The same men love not books and money both,
And books thy herd¹⁸, O Epicurus, loathe¹⁹;
Misers²⁰ and bookmen make poor company,
Nor dwell in peace beneath the same roof-tree.
No man, therefore, can serve both books and Mammon.

The hideousness²¹ of vice⁹ is greatly reprobated in books, so that he who loves to commune with books is led to detest²² all manner of vice. The demon²³, who derives²⁴ his name from knowledge, is most effectually defeated by the knowledge of books, and through books his multitudinous deceits and the endless labyrinths²⁵ of his guile²⁶ are laid bare to those who read, lest he be transformed into an angel of light and circumvent²⁷ the innocent by his wiles²⁸. The reverence²⁹ of God is revealed to us by books, the virtues³⁰ by which He is worshipped are more expressly manifested, and the rewards are described that are promised by the truth, which deceives not, neither is deceived. The truest likeness³¹ of the beatitude to come is the contemplation of the sacred writings, in which we behold³² in turn the Creator and the creature, and draw from streams of perpetual gladness. Faith is established by the power of books; hope is strengthened by their solace³³, insomuch that by patience and the consolation³⁴ of scripture¹¹ we are in good hope. Charity is not puffed³⁵ up, but is edified³⁶ by the knowledge of true learning, and, indeed, it is clearer than light that the Church is established upon the sacred writings.

Books delight us, when prosperity smiles upon us; they comfort us inseparably when stormy fortune frowns on us. They lend validity to human compacts, and no serious judgments³⁷ are propounded³⁸ without their help. Arts and sciences, all the advantages of which no mind can enumerate³⁹, consist in books. How highly must we estimate the wondrous⁴⁰ power of books, since through them we survey the utmost bounds of the world and time, and contemplate⁴¹ the things that are as well as those that are not, as it were in the mirror of eternity⁴². In books we climb mountains and scan the deepest gulfs of the abyss; in books we behold the finny tribes that may not exist outside their native waters, distinguish the properties of streams and springs and of various lands; from books we dig out gems⁴³ and metals and the materials of every kind of mineral, and learn the virtues of herbs and trees and plants, and survey at will the whole progeny⁴⁴ of Neptune⁴⁵, Ceres, and Pluto⁴⁶.

But if we please to visit the heavenly inhabitants, Taurus, Caucasus, and Olympus are at hand, from which we pass beyond the realms of Juno and mark out the territories of the seven planets by lines and circles. And finally we traverse the loftiest firmament⁴⁷ of all, adorned⁴⁸ with signs, degrees, and figures in the utmost variety. There we inspect the antarctic pole, which eye hath not seen, nor ear heard; we admire the luminous⁴⁹ Milky Way and the Zodiac, marvellously and delightfully⁵⁰ pictured with celestial⁵¹ animals. Thence by books we pass on to separate substances, that the intellect may greet kindred intelligences, and with the mind’s eye may discern the First Cause of all things and the Unmoved Mover of infinite virtue, and may immerse itself in love without end. See how with the aid of books we attain⁵² the reward of our beatitude, while we are yet sojourners below.

Why need we say more? Certes, just as we have learnt on the authority of Seneca, leisure without letters is death and the sepulture of the living, so contrariwise we conclude that occupation with letters or books is the life of man.

Again, by means of books we communicate to friends as well as foes⁵³ what we cannot safely entrust⁵⁴ to messengers; since the book is generally allowed access to the chambers⁵⁵ of princes, from which the voice of its author would be rigidly⁵⁶ excluded, as Tertullian observes at the beginning of his Apologeticus. When shut up in prison and in bonds, and utterly⁵⁷ deprived of bodily liberty, we use books as ambassadors to our friends, and entrust them with the conduct of our cause, and send them where to go ourselves would incur⁵⁸ the penalty of death. By the aid of books we remember things that are past, and even prophesy⁵⁹ as to the future; and things present, which shift and flow, we perpetuate⁶⁰ by committing them to writing.

The felicitous⁶¹ studiousness and the studious felicity of the all-powerful eunuch, of whom we are told in the Acts, who had been so mightily⁶² kindled⁶³ by the love of the prophetic writings that he ceased not from his reading by reason of his journey, had banished⁶⁴ all thought of the populous⁶⁵ palace of Queen Candace, and had forgotten even the treasures of which he was the keeper, and had neglected alike his journey and the chariot in which he rode. Love of his book alone had wholly engrossed⁶⁶ this domicile of chastity, under whose guidance he soon deserved to enter the gate of faith. O gracious love of books, which by the grace of baptism transformed the child of Gehenna and nursling of Tartarus into a Son of the Kingdom!

Let the feeble pen now cease from the tenor⁶⁷ of an infinite task, lest it seem foolishly to undertake what in the beginning it confessed to be impossible to any.

1 transcends   

超出或超越（经验、信念、描写能力等）的范围( transcend的第三人称单数 )； 优于或胜过…

参考例句：

• The chemical dilution technique transcends most of the difficulties. 化学稀释法能克服大部分困难。
• The genius of Shakespeare transcends that of all other English poets. 莎士比亚的才华胜过所有的其他英国诗人。

2 fully   

adv.完全地，全部地，彻底地；充分地

参考例句：

• The doctor asked me to breathe in,then to breathe out fully.医生让我先吸气，然后全部呼出。
• They soon became fully integrated into the local community.他们很快就完全融入了当地人的圈子。

3 milky   

adj.牛奶的，多奶的；乳白色的

参考例句：

• Alexander always has milky coffee at lunchtime.亚历山大总是在午餐时喝掺奶的咖啡。
• I like a hot milky drink at bedtime.我喜欢睡前喝杯热奶饮料。

4 eloquence   

n.雄辩；口才，修辞

参考例句：

• I am afraid my eloquence did not avail against the facts.恐怕我的雄辩也无补于事实了。
• The people were charmed by his eloquence.人们被他的口才迷住了。

5 stammering   

v.结巴地说出( stammer的现在分词 )

参考例句：

• He betrayed nervousness by stammering. 他说话结结巴巴说明他胆子小。 来自《简明英汉词典》
• \"Why,\" he said, actually stammering, \"how do you do?\" “哎呀，\"他说，真的有些结结巴巴，\"你好啊？” 来自英汉文学 - 嘉莉妹妹

6 rebounding   

蹦跳运动

参考例句：

• The strength of negative temperature concrete is tested with supersonic-rebounding method. 本文将超声回弹综合法用于负温混凝土强度检测。
• The fundamental of basketball includes shooting, passing and catching, rebounding, etc. 篮球运动中最基本的东西包括投篮，传接球，篮板球等。

7 virtue   

n.德行，美德；贞操；优点；功效，效力

参考例句：

• He was considered to be a paragon of virtue.他被认为是品德尽善尽美的典范。
• You need to decorate your mind with virtue.你应该用德行美化心灵。

8 vices   

缺陷( vice的名词复数 )； 恶习； 不道德行为； 台钳

参考例句：

• In spite of his vices, he was loved by all. 尽管他有缺点，还是受到大家的爱戴。
• He vituperated from the pulpit the vices of the court. 他在教堂的讲坛上责骂宫廷的罪恶。

9 vice   

n.坏事；恶习；[pl.]台钳，老虎钳；adj.副的

参考例句：

• He guarded himself against vice.他避免染上坏习惯。
• They are sunk in the depth of vice.他们堕入了罪恶的深渊。

10 vigour   

（=vigor）n.智力，体力，精力

参考例句：

• She is full of vigour and enthusiasm.她有热情，有朝气。
• At 40,he was in his prime and full of vigour.他40岁时正年富力强。

11 scripture   

n.经文，圣书，手稿；Scripture:(常用复数)《圣经》，《圣经》中的一段

参考例句：

• The scripture states that God did not want us to be alone.圣经指出上帝并不是想让我们独身一人生活。
• They invoked Hindu scripture to justify their position.他们援引印度教的经文为他们的立场辩护。

12 scriptures   

经文，圣典( scripture的名词复数 )； 经典

参考例句：

• Here the apostle Peter affirms his belief that the Scriptures are 'inspired'. 使徒彼得在此表达了他相信《圣经》是通过默感写成的。
• You won't find this moral precept in the scriptures. 你在《圣经》中找不到这种道德规范。

13 wilt   

v.(使)植物凋谢或枯萎；(指人)疲倦，衰弱

参考例句：

• Golden roses do not wilt and will never need to be watered.金色的玫瑰不枯萎绝也不需要浇水。
• Several sleepless nights made him wilt.数个不眠之夜使他憔悴。

14 omnipotence   

n.全能，万能，无限威力

参考例句：

• Central bankers have never had any illusions of their own omnipotence. 中行的银行家们已经不再对于他们自己的无所不能存有幻想了。 来自互联网
• Introduce an omnipotence press automatism dividing device, explained it operation principle. 介绍了冲压万能自动分度装置，说明了其工作原理。 来自互联网

15 slay   

v.杀死，宰杀，杀戮

参考例句：

• He intended to slay his father's murderer.他意图杀死杀父仇人。
• She has ordered me to slay you.她命令我把你杀了。

16 dagger   

n.匕首，短剑，剑号

参考例句：

• The bad news is a dagger to his heart.这条坏消息刺痛了他的心。
• The murderer thrust a dagger into her heart.凶手将匕首刺进她的心脏。

17 smitten   

猛打，重击，打击( smite的过去分词 )

参考例句：

• From the moment they met, he was completely smitten by her. 从一见面的那一刻起，他就完全被她迷住了。
• It was easy to see why she was smitten with him. 她很容易看出为何她为他倾倒。

18 herd   

n.兽群，牧群；vt.使集中，把…赶在一起

参考例句：

• She drove the herd of cattle through the wilderness.她赶着牛群穿过荒野。
• He had no opinions of his own but simply follow the herd.他从无主见，只是人云亦云。

19 loathe   

v.厌恶，嫌恶

参考例句：

• I loathe the smell of burning rubber.我厌恶燃着的橡胶散发的气味。
• You loathe the smell of greasy food when you are seasick.当你晕船时，你会厌恶油腻的气味。

20 misers   

守财奴，吝啬鬼( miser的名词复数 )

参考例句：

• Misers put their back and their belly into their pockets. 守财奴爱财如命， 宁可饿肚皮，没衣穿。
• Misers put their back and belly into their pockets. 守财奴宁肯挨饿受冻也舍不得花钱。

21 hideousness   

参考例句：

• Hideousness of aspect, deformity of instinct, troubled him not, and did not arouse his indignation. 外形的丑陋和本性的怪异都不能惊动他，触犯他。 来自互联网

22 detest   

vt.痛恨，憎恶

参考例句：

• I detest people who tell lies.我恨说谎的人。
• The workers detest his overbearing manner.工人们很讨厌他那盛气凌人的态度。

23 demon   

n.魔鬼，恶魔

参考例句：

• The demon of greed ruined the miser's happiness.贪得无厌的恶习毁掉了那个守财奴的幸福。
• He has been possessed by the demon of disease for years.他多年来病魔缠身。

24 derives   

v.得到( derive的第三人称单数 )；（从…中）得到获得；源于；（从…中）提取

参考例句：

• English derives in the main from the common Germanic stock. 英语主要源于日耳曼语系。 来自《简明英汉词典》
• He derives his income from freelance work. 他以自由职业获取收入。 来自《简明英汉词典》

25 labyrinths   

迷宫( labyrinth的名词复数 )； （文字，建筑）错综复杂的

参考例句：

• I was engulfed in labyrinths of trouble too great to get out at all. 我陷入困难的迷宫中去，简直无法脱身。
• I've explored ancient castles, palaces, temples, tombs, catacombs and labyrinths. 我曾在古堡、古皇宫、古神庙、古墓、地下墓穴和迷宫中探险。

26 guile   

n.诈术

参考例句：

• He is full of guile.他非常狡诈。
• A swindler uses guile;a robber uses force.骗子用诈术；强盗用武力。

27 circumvent   

vt.环绕，包围；对…用计取胜，智胜

参考例句：

• Military planners tried to circumvent the treaty.军事策略家们企图绕开这一条约。
• Any action I took to circumvent his scheme was justified.我为斗赢他的如意算盘而采取的任何行动都是正当的。

28 wiles   

n.（旨在欺骗或吸引人的）诡计，花招；欺骗，欺诈( wile的名词复数 )

参考例句：

• All her wiles were to persuade them to buy the goods. 她花言巧语想打动他们买这些货物。 来自《简明英汉词典》
• The woman used all her wiles to tempt him into following her. 那女人用尽了自己的诱骗本领勾引着他尾随而去。 来自《用法词典》

29 reverence   

n.敬畏，尊敬，尊严；Reverence:对某些基督教神职人员的尊称；v.尊敬，敬畏，崇敬

参考例句：

• He was a bishop who was held in reverence by all.他是一位被大家都尊敬的主教。
• We reverence tradition but will not be fettered by it.我们尊重传统，但不被传统所束缚。

30 virtues   

美德( virtue的名词复数 )； 德行； 优点； 长处

参考例句：

• Doctors often extol the virtues of eating less fat. 医生常常宣扬少吃脂肪的好处。
• She delivered a homily on the virtues of family life. 她进行了一场家庭生活美德方面的说教。

31 likeness   

n.相像，相似（之处）

参考例句：

• I think the painter has produced a very true likeness.我认为这位画家画得非常逼真。
• She treasured the painted likeness of her son.她珍藏她儿子的画像。

32 behold   

v.看，注视，看到

参考例句：

• The industry of these little ants is wonderful to behold.这些小蚂蚁辛勤劳动的样子看上去真令人惊叹。
• The sunrise at the seaside was quite a sight to behold.海滨日出真是个奇景。

33 solace   

n.安慰；v.使快乐；vt.安慰(物)，缓和

参考例句：

• They sought solace in religion from the harshness of their everyday lives.他们日常生活很艰难，就在宗教中寻求安慰。
• His acting career took a nosedive and he turned to drink for solace.演艺事业突然一落千丈，他便借酒浇愁。

34 consolation   

n.安慰，慰问

参考例句：

• The children were a great consolation to me at that time.那时孩子们成了我的莫大安慰。
• This news was of little consolation to us.这个消息对我们来说没有什么安慰。

35 puffed   

adj.疏松的v.使喷出( puff的过去式和过去分词 )；喷着汽（或烟）移动；吹嘘；吹捧

参考例句：

• He lit a cigarette and puffed at it furiously. 他点燃了一支香烟，狂吸了几口。 来自《简明英汉词典》
• He felt grown-up, puffed up with self-importance. 他觉得长大了，便自以为了不起。 来自《简明英汉词典》

36 edified   

v.开导，启发( edify的过去式和过去分词 )

参考例句：

• He must be edified by what he sees. 他耳濡目染，一定也受到影响。 来自辞典例句
• For thou verily givest thanks well, but the other is not edified. 你感谢的固然是好，无奈不能造就别人。 来自互联网

37 judgments   

判断( judgment的名词复数 )； 鉴定； 评价； 审判

参考例句：

• A peculiar austerity marked his judgments of modern life. 他对现代生活的批评带着一种特殊的苛刻。
• He is swift with his judgments. 他判断迅速。

38 propounded   

v.提出（问题、计划等）供考虑[讨论]，提议( propound的过去式和过去分词 )

参考例句：

• the theory of natural selection, first propounded by Charles Darwin 查尔斯∙达尔文首先提出的物竞天择理论
• Indeed it was first propounded by the ubiquitous Thomas Young. 实际上，它是由尽人皆知的杨氏首先提出来的。 来自辞典例句

39 enumerate   

v.列举，计算，枚举，数

参考例句：

• The heroic deeds of the people's soldiers are too numerous to enumerate.人民子弟兵的英雄事迹举不胜举。
• Its applications are too varied to enumerate.它的用途不胜枚举。

40 wondrous   

adj.令人惊奇的，奇妙的；adv.惊人地；异乎寻常地；令人惊叹地

参考例句：

• The internal structure of the Department is wondrous to behold.看一下国务院的内部结构是很有意思的。
• We were driven across this wondrous vast land of lakes and forests.我们乘车穿越这片有着湖泊及森林的广袤而神奇的土地。

41 contemplate   

vt.盘算，计议；周密考虑；注视，凝视

参考例句：

• The possibility of war is too horrifying to contemplate.战争的可能性太可怕了，真不堪细想。
• The consequences would be too ghastly to contemplate.后果不堪设想。

42 eternity   

n.不朽，来世；永恒，无穷

参考例句：

• The dull play seemed to last an eternity.这场乏味的剧似乎演个没完没了。
• Finally,Ying Tai and Shan Bo could be together for all of eternity.英台和山伯终能双宿双飞，永世相随。

43 gems   

growth； economy； management； and customer satisfaction 增长

参考例句：

• a crown studded with gems 镶有宝石的皇冠
• The apt citations and poetic gems have adorned his speeches. 贴切的引语和珠玑般的诗句为他的演说词增添文采。

44 progeny   

n.后代，子孙；结果

参考例句：

• His numerous progeny are scattered all over the country.他为数众多的后代散布在全国各地。
• He was surrounded by his numerous progeny.众多的子孙簇拥着他。

45 Neptune   

n.海王星

参考例句：

• Neptune is the furthest planet from the sun.海王星是离太阳最远的行星。
• Neptune turned out to be a dynamic,stormy world.海王星原来是个有生气、多风暴的世界。

46 Pluto   

n.冥王星

参考例句：

• Pluto is the furthest planet from the sun.冥王星是离太阳最远的行星。
• Pluto has an elliptic orbit.冥王星的轨道是椭圆形的。

47 firmament   

n.苍穹；最高层

参考例句：

• There are no stars in the firmament.天空没有一颗星星。
• He was rich,and a rising star in the political firmament.他十分富有，并且是政治高层一颗冉冉升起的新星。

48 adorned   

[计]被修饰的

参考例句：

• The walls were adorned with paintings. 墙上装饰了绘画。
• And his coat was adorned with a flamboyant bunch of flowers. 他的外套上面装饰着一束艳丽刺目的鲜花。

49 luminous   

adj.发光的，发亮的；光明的；明白易懂的；有启发的

参考例句：

• There are luminous knobs on all the doors in my house.我家所有门上都安有夜光把手。
• Most clocks and watches in this shop are in luminous paint.这家商店出售的大多数钟表都涂了发光漆。

50 delightfully   

大喜，欣然

参考例句：

• The room is delightfully appointed. 这房子的设备令人舒适愉快。 来自《现代汉英综合大词典》
• The evening is delightfully cool. 晚间凉爽宜人。 来自《现代汉英综合大词典》

51 celestial   

adj.天体的；天上的

参考例句：

• The rosy light yet beamed like a celestial dawn.玫瑰色的红光依然象天上的朝霞一样绚丽。
• Gravity governs the motions of celestial bodies.万有引力控制着天体的运动。

52 attain   

vt.达到，获得，完成

参考例句：

• I used the scientific method to attain this end. 我用科学的方法来达到这一目的。
• His painstaking to attain his goal in life is praiseworthy. 他为实现人生目标所下的苦功是值得称赞的。

53 foes   

敌人，仇敌( foe的名词复数 )

参考例句：

• They steadily pushed their foes before them. 他们不停地追击敌人。
• She had fought many battles, vanquished many foes. 她身经百战，挫败过很多对手。

54 entrust   

v.信赖，信托，交托

参考例句：

• I couldn't entrust my children to strangers.我不能把孩子交给陌生人照看。
• They can be entrusted to solve major national problems.可以委托他们解决重大国家问题。

55 chambers   

n.房间( chamber的名词复数 )；（议会的）议院；卧室；会议厅

参考例句：

• The body will be removed into one of the cold storage chambers. 尸体将被移到一个冷冻间里。 来自《简明英汉词典》
• Mr Chambers's readable book concentrates on the middle passage: the time Ransome spent in Russia. Chambers先生的这本值得一看的书重点在中间：Ransome在俄国的那几年。 来自互联网

56 rigidly   

adv.刻板地，僵化地

参考例句：

• Life today is rigidly compartmentalized into work and leisure. 当今的生活被严格划分为工作和休闲两部分。
• The curriculum is rigidly prescribed from an early age. 自儿童时起即已开始有严格的课程设置。

57 utterly   

adv.完全地，绝对地

参考例句：

• Utterly devoted to the people,he gave his life in saving his patients.他忠于人民，把毕生精力用于挽救患者的生命。
• I was utterly ravished by the way she smiled.她的微笑使我完全陶醉了。

58 incur   

vt.招致，蒙受，遭遇

参考例句：

• Any costs that you incur will be reimbursed in full.你的所有花费都将全额付还。
• An enterprise has to incur certain costs and expenses in order to stay in business.一个企业为了维持营业,就不得不承担一定的费用和开支。

59 prophesy   

v.预言；预示

参考例句：

• He dares to prophesy what will happen in the future.他敢预言未来将发生什么事。
• I prophesy that he'll be back in the old job.我预言他将重操旧业。

60 perpetuate   

v.使永存，使永记不忘

参考例句：

• This monument was built to perpetuate the memory of the national hero.这个纪念碑建造的意义在于纪念民族英雄永垂不朽。
• We must perpetuate the system.我们必须将此制度永久保持。

61 felicitous   

adj.恰当的，巧妙的；n.恰当，贴切

参考例句：

• She played him--sometimes delicately,sometimes with a less felicitous touch.她吊着他--有时温柔地，有时手法就不那么巧妙。
• You need to handle the delicate matter in a most felicitous manner.你需要用得体的方式处理这件微妙的事。

62 mightily   

ad.强烈地；非常地

参考例句：

• He hit the peg mightily on the top with a mallet. 他用木槌猛敲木栓顶。
• This seemed mightily to relieve him. 干完这件事后，他似乎轻松了许多。

63 kindled   

（使某物）燃烧，着火( kindle的过去式和过去分词 )； 激起（感情等）； 发亮，放光

参考例句：

• We watched as the fire slowly kindled. 我们看着火慢慢地燃烧起来。
• The teacher's praise kindled a spark of hope inside her. 老师的赞扬激起了她内心的希望。

64 banished   

v.放逐，驱逐( banish的过去式和过去分词 )

参考例句：

• He was banished to Australia, where he died five years later. 他被流放到澳大利亚，五年后在那里去世。
• He was banished to an uninhabited island for a year. 他被放逐到一个无人居住的荒岛一年。 来自《简明英汉词典》

65 populous   

adj.人口稠密的，人口众多的

参考例句：

• London is the most populous area of Britain.伦敦是英国人口最稠密的地区。
• China is the most populous developing country in the world.中国是世界上人口最多的发展中国家。

66 engrossed   

adj.全神贯注的

参考例句：

• The student is engrossed in his book.这名学生正在专心致志地看书。
• No one had ever been quite so engrossed in an evening paper.没人会对一份晚报如此全神贯注。

67 tenor   

n.男高音（歌手），次中音（乐器），要旨，大意

参考例句：

• The tenor of his speech was that war would come.他讲话的大意是战争将要发生。
• The four parts in singing are soprano,alto,tenor and bass.唱歌的四个声部是女高音、女低音、男高音和男低音。