Book II chapter 4

The question might be asked,; what we mean by saying that we must become just by doing just acts, and temperate¹ by doing temperate acts; for if men do just and temperate acts, they are already just and temperate, exactly as, if they do what is in accordance with the laws of grammar and of music, they are grammarians and musicians.

Or is this not true even of the arts? It is possible to do something that is in accordance with the laws of grammar, either by chance or at the suggestion of another. A man will be a grammarian, then, only when he has both done something grammatical and done it grammatically; and this means doing it in accordance with the grammatical knowledge in himself.

Again, the case of the arts and that of the virtues² are not similar; for the products of the arts have their goodness in themselves, so that it is enough that they should have a certain character, but if the acts that are in accordance with the virtues have themselves a certain character it does not follow that they are done justly or temperately³. The agent also must be in a certain condition when he does them; in the first place he must have knowledge, secondly⁴ he must choose the acts, and choose them for their own sakes, and thirdly his action must proceed from a firm and unchangeable character. These are not reckoned in as conditions of the possession of the arts, except the bare knowledge; but as a condition of the possession of the virtues knowledge has little or no weight, while the other conditions count not for a little but for everything, i.e. the very conditions which result from often doing just and temperate acts.

Actions, then, are called just and temperate when they are such as the just or the temperate man would do; but it is not the man who does these that is just and temperate, but the man who also does them as just and temperate men do them. It is well said, then, that it is by doing just acts that the just man is produced, and by doing temperate acts the temperate man; without doing these no one would have even a prospect⁵ of becoming good.

But most people do not do these, but take refuge in theory and think they are being philosophers and will become good in this way, behaving somewhat like patients who listen attentively⁶ to their doctors, but do none of the things they are ordered to do. As the latter will not be made well in body by such a course of treatment, the former will not be made well in soul by such a course of philosophy.

1 temperate   

adj.温和的，温带的，自我克制的，不过分的

参考例句：

• Asia extends across the frigid,temperate and tropical zones.亚洲地跨寒、温、热三带。
• Great Britain has a temperate climate.英国气候温和。

2 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。

3 temperately   

adv.节制地，适度地

参考例句：

• We are not spending extravagantly, but spending reasonably and temperately. 他们不是在挥霍无度的消费，而是合理的有节制的花费。 来自互联网
• He used the privileges of his office temperately. 他有节制地使用了自己的职务特权。 来自互联网

4 secondly   

adv.第二，其次

参考例句：

• Secondly,use your own head and present your point of view.第二，动脑筋提出自己的见解。
• Secondly it is necessary to define the applied load.其次，需要确定所作用的载荷。

5 prospect   

n.前景，前途；景色，视野

参考例句：

• This state of things holds out a cheerful prospect.事态呈现出可喜的前景。
• The prospect became more evident.前景变得更加明朗了。

6 attentively   

adv.聚精会神地；周到地；谛；凝神

参考例句：

• She listened attentively while I poured out my problems. 我倾吐心中的烦恼时，她一直在注意听。 来自《简明英汉词典》
• She listened attentively and set down every word he said. 她专心听着，把他说的话一字不漏地记下来。 来自《简明英汉词典》