处理一个不自由的世界的唯一方法是变得如此绝对自由，以至于你的存在本身就是一种反叛。
The process of doing mathematics is as important as the result itself.
你的过去并不等于你的未来。
过去是一个异国，那里的人做事方式不同。
艺术家的职责是表达他人所不能。
I don't run out of material. I run out of time.
Boys, you must strive to find your own voice. Because the longer you wait to begin, the less likely you are to find it at all. Thoreau said, "Most men lead lives of quiet desperation." Don't be resigned to that. Break out.