Book III chapter 4

Here I must do Epicurus the justice to say that he constantly complains of our ingratitude¹ for past benefits, because we cannot bring back again, or count among our present pleasures, those good things which we have received long ago, although no pleasures can be more undeniable than those which cannot be taken from us. Present good is not yet altogether complete, some mischance may interrupt it; the future is in suspense³, and uncertain; but what is past is laid up in safety. How can any man feel gratitude² for benefits, if he skips through his whole life entirely⁴ engrossed⁵ with the present and the future? It is remembrance that mates men grateful; and the more men hope, the less they remember.

1 ingratitude   

n.忘恩负义

参考例句：

• Tim's parents were rather hurt by his ingratitude.蒂姆的父母对他的忘恩负义很痛心。
• His friends were shocked by his ingratitude to his parents.他对父母不孝，令他的朋友们大为吃惊。

2 gratitude   

adj.感激，感谢

参考例句：

• I have expressed the depth of my gratitude to him.我向他表示了深切的谢意。
• She could not help her tears of gratitude rolling down her face.她感激的泪珠禁不住沿着面颊流了下来。

3 suspense   

n.（对可能发生的事）紧张感，担心，挂虑

参考例句：

• The suspense was unbearable.这样提心吊胆的状况实在叫人受不了。
• The director used ingenious devices to keep the audience in suspense.导演用巧妙手法引起观众的悬念。

4 entirely   

ad.全部地，完整地；完全地，彻底地

参考例句：

• The fire was entirely caused by their neglect of duty. 那场火灾完全是由于他们失职而引起的。
• His life was entirely given up to the educational work. 他的一生统统献给了教育工作。

5 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。