我认为美来自内心。它不是你可以放在脸上的东西。它是你必须从内心感受到的东西。
The theory of probabilities is at bottom nothing but common sense reduced to calculus.
失去一个父母可以看成是一种不幸；失去双亲看上去就像是一种粗心了。
Writing is a way of fighting against oblivion, against death.
学习的最佳方式是教授。
The joy of mathematics comes from the moments of clarity when complex things become simple.
"The past is always tense, the future perfect."