"Sometimes love isn’t enough and you have to walk away."
有时候爱是不够的，你必须离开。
The process of creating is just as important as the final product.
Every mental act has its place in the economy of life.
The essence of mathematics lies in its freedom.
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.
