生活得最有意义的人，并不就是年岁活得最大的人，而是生活最有感受的人。

实现明天理想的唯一障碍是今天的疑虑。

We are all born with a certain package. We are who we are: where we were born, who we were born as, how we were raised. We're kind of stuck inside that person, and the purpose of civilization and growth is to be able to reach out and empathize a little bit with other people.

Life is too short to be anything but happy.

Never say never

数学的本质在于它的自由。