Every problem in mathematics is a puzzle waiting to be solved, and the joy is in the solving.
It's not whether you're right or wrong that's important, but how much money you make when you're right and how much you lose when you're wrong.
对付一个不自由的世界的唯一方法,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。
Materials have memory; they carry time and stories.