On marketing: "In the old world， you devoted 30% of your time to building a great service and 70% of your time to shouting about it. In the new world， that inverts."
做你自己，别人都已经有人做了。
专注和简单一直是我的秘诀之一。简单可能比复杂更难做到，你必须努力理清思路，从而使其变得简单。
应对不自由世界的唯一方法就是变得如此绝对自由，以至于你的存在本身就是一种反叛。
A mathematician's work is never done; there are always more problems to solve.
A dreamer is one who can only find his way by moonlight, and his punishment is that he sees the dawn before the rest of the world.