Leadership is about making the tough decisions and standing by them, even when they're unpopular.

I cannot fix on the hour, or the spot, or the look, or the words, which laid the foundation. It is too long ago. I was in the middle before I knew that I had begun.

真正的进步不仅以利润衡量，还以我们对人类和地球的积极影响衡量。

The world is full of obvious things which nobody by any chance ever observes.

I think it's important to be able to laugh at life.

There is no true liberty without the liberty of thought.