History is not the past. It is the method we have evolved of organizing our ignorance of the past.

Success is not accidental. It requires a lot of effort and sweat.

人类最深的恐惧是对未知的恐惧。

The future of life on Earth depends on our ability to take action. Many individuals are doing what they can, but real success can only come if there is a change in our societies and our economics and in our politics.

领导力不是发号施令，而是激励他人成就卓越。