Greatness is not about being the best, it's about being better than you were yesterday.

I never guess. It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts.

真正的领导力在于赋能他人发挥全部潜力。

We are interested in the space between people and objects, and how they interact.

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.