Never compromise on quality. It's the foundation of everything we do.

The best way to learn mathematics is to do mathematics.

"Life is a journey that must be traveled no matter how bad the roads and accommodations."

The method of introspection must be rigorously controlled.

No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.

最深刻的真理存在于矛盾之中。