小人办事，处理的原则是私利，合于私利的就看作利，违背私利的就看作害；君子办事，衡量的标准是道义，合于道义的就看作利，违反道义的就看作害。

书籍是连接我们与未来的桥梁。

The things we admire in men, kindness and generosity, openness, honesty, understanding and feeling, are the concomitants of failure in our system. And those traits we detest, sharpness, greed, acquisitiveness, meanness, egotism and self-interest, are the traits of success.

In this world, nothing makes you grow more than loneliness.

在数学中，发现的旅程往往比目的地本身更有价值。

I don't follow trends. I set them.

The footsteps of Nature are to be traced, not only in her ordinary course, but when she deviates from it in her most extravagant excursions.

War is peace. Freedom is slavery. Ignorance is strength.

最好的学习方法就是动手去做——在实验室里亲自动手。

算法的发展既是一门艺术，也是一门科学。