The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt; and the profoundest wisdom, to know when it ought to be resisted, and when it be obeyed.

Collaboration, not competition, will solve the world’s biggest environmental challenges.

当痛苦找到意义时，它就不再是痛苦。

There’s no such thing as too much butter in a recipe—only too little joy.

历史不是过去——它是我们组织对过去无知的方法。

做出伟大工作的唯一方法是热爱你所做的事情。

The only reason people want to be masters of the future is to change the past.