我们都有自己的小秘密,自己的小羞耻。
我的语言的界限意味着我的世界的界限。
The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt, and the profoundest wisdom to know when it ought to be resisted, and when it be obeyed.
The power of abstraction is what allows mathematics to transcend the limits of physical reality.