应当通过具体事物探究规律，不可先设定规律来限制事物。

"To live is the rarest thing in the world. Most people exist, that is all."

The only thing necessary for the triumph of evil is for good men to do nothing.

市场不会因为你正确而奖励你，它会因为你盈利而奖励你。

I think therefore I am has been discarded; we should say, I feel therefore I am.

I am not a liberator. Liberators do not exist. The people liberate themselves.

量子电动力学的发展表明，粒子的概念并不像曾经认为的那样简单。