It is greed and thirst for power that brings wars and trouble to the world.
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
Combinatorics is the art of counting without counting.
The more you experience, the more you learn.
人は誰でも、自分が正しいと思っている。
We cannot be sure of having something to live for unless we are willing to die for it.
We should weep for men at their birth, not at their death.
平静:不要被琐事、普通或者不可避免的事所扰。