永远不要停止学习；一旦停止，你就会过时。
Never stop learning; the moment you do, you become obsolete.
The choice for mankind lies between freedom and happiness and for the great bulk of mankind, happiness is better.
The only way to do great work is to love what you do.
死和生听凭命运的安排，富与贵在于上天的决定。君子只要尽心尽力而没有过失，对人恭敬而合乎礼法，那么四海之内的人都如兄弟一般了。
In mathematics, the art of proposing a question must be held of higher value than solving it.
Life is about the journey, not the destination.
成功不在于终点，而在于旅程。