The strength of a building is not just in its materials, but in the spirit of the people who use it.

The unexamined life is not worth living.

最大的风险是世界在变化时我们停滞不前。

We are all haunted by the ghosts of our past.

领导力在于做出今天艰难的决定，这些决定将为子孙后代带来益处。