Quality is not an act, it is a habit.
The surest way to corrupt a youth is to instruct him to hold in higher esteem those who think alike than those who think differently.
"If you don't change, you become extinct."
解决数学问题的喜悦是无与伦比的；这是纯粹的智力胜利的时刻。
Stay true to yourself and never sacrifice who you are for anyone.
不要等待完美的时刻。抓住这一刻，让它变得完美。
One is loved because one is loved. No reason is needed for loving.
The dialectical unity of Love and Strife is the eternal driving force in the cosmos.
