I always tell my students that it's okay to make mistakes, as long as you learn from them.

The universe we observe has precisely the properties we should expect if there is, at bottom, no design, no purpose, no evil, no good, nothing but blind, pitiless indifference.

Our descendants will achieve things that will amaze us， yet a portion of what they will create could have been made with today’s materials and tools if we had had the imagination. Think bigger.

预言是人类唯一一项无法经由练习而改善的技术。

文学的力量在于它能够使不可见的东西变得可见。