Learning is not compulsory... neither is survival.
学习不是强制性的...生存也不是。
It's not about how hard you hit. It's about how hard you can get hit and keep moving forward.
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。
The past is not a burden, but a foundation upon which to build.
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.