词汇不仅仅是声音或符号，而是事实的标志。

In times of change, the learners inherit the earth while the learned find themselves beautifully equipped to deal with a world that no longer exists.

革命就像骑自行车，如果不前进就会倒下。

Leadership is not about being in charge. It's about taking care of those in your charge.

The key to good design is to make things simple, but not simpler.