On haters: "If you never want to be criticized， for goodness' sake don't do anything new."

If you want a picture of the future, imagine a boot stamping on a human face—forever.

A mathematician's best work often comes from seeing connections where others see none.

The person who tries to live alone will not succeed as a human being. His heart withers if it does not answer another heart. His mind shrinks away if he hears only the echoes of his own thoughts and finds no other inspiration.

那些疯狂到认为自己能够改变世界的人，才能真正改变世界。