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.

Every journey is a search for the self, even when we think we are running away.

科学的整个历史是一个渐进的自我实现的历程，重大的事件不会任意发生，但是他们反映了一种潜在的次序，而不会简单地由灵感产生。

道德的基础是对他人的同情。