When you have some success， the feeling of being an imposter can be real. Who am I fooling？ But when you create things that only you — with your unique talents and experience — can do， then you are absolutely not an imposter. You are the ordained. It is your duty to work on things that only you can do.

Mathematics is the art of giving the same name to different things.

民主是最坏的政府形式——除了其他所有不断地被试验过的政府形式之外。

每个想法都有其目的，即使我们无法立即察觉。