We teach a subject not to produce little living libraries on that subject, but rather to get a student to think mathematically for himself.
Twenty years from now you will be more disappointed by the things that you didn’t do than by the ones you did do. So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover.
每一枪都很重要，每一刻都很关键。
The brain is a machine assembled not to understand itself, but to survive. It is a machine for making decisions that lead to survival.
"Writing is a form of resistance."