Happiness is not the absence of problems, but the ability to deal with them.

Look up at the stars and not down at your feet. Try to make sense of what you see, and wonder about what makes the universe exist. Be curious.

A good mathematician is always ready to generalize.

面对绝望时，唯一可以负责任地实践的哲学是试图从救赎的角度来思考一切事物。