自由的目的是为了解放他人。

科学的真正价值在于它改变我们视角的能力。

A true mathematician is always a student, always learning.

Thought is the most difficult task, which is why so few engage in it.

Our experience tends to confirm a long-held notion that being prepared, on a few occasions in a lifetime, to act promptly in scale, in doing some simple and logical thing, will often dramatically improve the financial results of that lifetime.