无限小在自然中的作用是无限大的。

I went to the woods because I wanted to live deliberately. I wanted to live deep and suck out all the marrow of life. To put to rout all that was not life. And not, when I had come to die, discover that I had not lived.

市场总是处于不确定和变化的状态，赚钱是通过对显而易见的事情进行折现并对意外事件下注。

"I think the best films are the ones that challenge you, that make you think, that make you feel something."

The only thing I can control is my effort and my attitude.

真正明智的教师不会邀请你进入他智慧的房子，而是引导你到自己心灵的门槛。