The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.

Quality is not a promise; it is a result.

我不需要努力变得与众不同；我就是与众不同。

Every generation needs a new revolution.

预测未来的最好方式就是创造未来。