Man is not the creature of circumstances； circumstances are the creatures of men.

"The essence of mathematics is not to make simple things complicated, but to make complicated things simple."

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。

A picture must be grasped at once, as a whole, like a piece of music or a poem.

有时候你得有点调皮。