我痴迷于重塑自我。

人们花在身体上的金钱和精力，如果用在心灵上，可能会带来更大的收益。

Stupid is as stupid does.

我一直是这个世界上的陌生人，一个访客，一个游客。

不要等待机会，创造机会。

"Freedom is nothing else but a chance to be better."

I could easily forgive his pride, if he had not mortified mine.

The only thing I can rely on is my own perception and that is always changing.

PAC学习框架提供了一种形式化的方法来量化概念类的可学习性。