应对不自由世界的唯一方法是变得如此绝对自由，以至于你的存在本身就是一种反叛。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
To do mathematics is to explore a universe of ideas, where the only limit is your imagination.
The past is a foreign country; they do things differently there.
我不敢说自己从未担心害怕过。 实际上我希望少一点担心害怕，因为它让我分心，使我焦虑。
最好的投资是那些正在建设未来的人。
沟通中最大的问题是错觉以为沟通已经发生。
"I don't believe in happy endings, but I do believe in happy travels, because ultimately, you die at a very young age, or you live long enough to watch your friends die."
材料本身并不重要，重要的是你如何使用它们。
数学的进步是通过不断质疑已建立的真理来实现的。
I don't keep a journal. I keep a life.
The only maxim of a free government ought to be to trust no man living with power to endanger the public liberty.