A good mathematician is one who can see analogies between theorems; a great mathematician is one who can see analogies between analogies.

未来属于那些明白行善与成功并不矛盾的人。

主题是自传性的，实际上与希望、记忆、感官和参与有关。

如果你愿意，我们可以回到那个山洞。