It's not about how much you have, but how much you enjoy what you have.
We are all descendants of successful ancestors; failure left no progeny.
科学是人类理解和改造世界的最有力工具。
抓紧时间,孩子们,让你的生命不同寻常。
The important thing in life is not the triumph but the struggle.
Liberty consists in doing what one desires.