A mathematician's intuition is as important as rigorous proof.

The highest manifestation of life consists in this: that a being governs its own actions.A thing which is always subject to the direction of another is somewhat of a dead thing.

科学中的创新往往来自于以新的方式看待老问题。

A religion that gives nothing, costs nothing, and suffers nothing, is worth nothing.

大自然从不欺骗我们；欺骗我们的总是我们自己。