数学不是沿着一条清理得很好的高速公路小心行进，而是进入一个陌生的荒野的旅程，探险者常常会迷路。
Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.
当你收到在未来做某事的邀请时，问问自己：如果这件事安排在明天，你会接受吗？这可以筛选掉大部分事情。
Generally speaking, envy, resentment, and self-pity are disastrous modes of thoughts.Self-pity gets fairly close to paranoia, and paranoia is one of the very hardest things to reverse.
The only way to do great work is to love what you do.
精神生活是唯一值得过的生活。
我不是一个喜欢被遗忘的人。