You have to be comfortable with being uncomfortable if you want to make progress in mathematics.
如果你想在数学上取得进步，你必须习惯于不舒服。
你不必完美无缺才能令人惊叹。
You don't write because you want to say something, you write because you have something to say.
The most beautiful as well as the most ugly inclinations of man are not part of a fixed biologically given nature, but result from the social process which creates man.
The key to good design is to make things simple, but not simpler.
