"To me, fearless is not the absence of fear. It's not being completely unafraid. To me, fearless is having fears. Fearless is having doubts. Lots of them. To me, fearless is living in spite of those things that scare you to death."

数学的美在于它能够用一种既精确又普遍的语言来描述宇宙。

Technology alone won't save us—it's how we apply it that matters.

Keep your head up, God gives his hardest battles to his strongest soldiers.

理性的人适应世界，非理性的人坚持让世界适应自己。因此，所有的进步都依赖于非理性的人。