永远不要停止学习——当你认为自己什么都懂的那一刻,就是你落后的开始。
I don't think about age. I think about spirit.
是时候抛弃这种迷信了:在哲学家解决归纳问题之前,自然科学就无法在逻辑上站得住脚。
"When you are writing, you are trying to find out something which you don't know."