早成者未必有成，晚成者未必不达。不可以年少而自恃，不可以年老而自弃。
释义：早早成功的人未必能取得长久的成就，晚点成功的人也未必不能达到目标。因此，不能因为年轻就自满骄傲，也不能因为年老就自暴自弃。
"Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful."
The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them.
修道就是修心，修心就是修道。