人生的意义在于追求真理和美德。

注意穿着打扮是必要的。而拥有生活目标却并非如此。

译文：与其在生病后去求取药物，不如在生病前做好自我的预防。赏析：任何事都要提前谋划，防患未然，事到临头才不会手忙脚乱。平时不烧香，临时抱佛脚是没有用的。

译文：喝醉后控制不住情绪胡言乱语，醒来后就会后悔，健康的时候不注意调养生息，等到生病的时候就会后悔。赏析：物极必反，做任何事都要有个尺度，同时要做到防患于未然，否则就会发生祸患。

高效算法的开发不仅仅是一个理论练习；它对我们的生活方式和工作方式有实际影响。

In the world of the internet, the most important thing is to focus on the customer experience.

There's not a day goes by I don't feel regret. Not because I'm in here, or because you think I should. I look back on the way I was then. Then a young, stupid kid who committed that terrible crime. I want to talk to him. I want to try and talk some sense to him, tell him the way things are. But I can't. That kid's long gone and this old man is all that's left. I got to live with that. Rehabilitated? It's just a bullshit word. So you go on and stamp your form, sonny, and stop wasting my time.Because to tell you the truth, I don't give a shit.

数学语言是通用的；它超越了所有文化障碍。