Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.

这些人很少不是死于自己的所长，所以说∶事业达到顶峰就难以持久。 

The laws of behavior are as precise as those of physics.

The future belongs to those who dare to believe in the impossible.

I don't let setbacks stop me. They make me stronger.

成功不是终点，失败也非致命，重要的是继续前进的勇气。