按惯例，甜是甜的，苦是苦的，热是热的，冷是冷的，颜色是颜色；但实际上只有原子和虚空。
I like to think of mathematics as a kind of poetry.
如果要说实话，我必须坦白我依然喜欢读童话，而且最喜欢读的书就是童话书。
La memoria es un perro que se muerde la cola.
To be free is not merely to cast off one's chains, but to live in a way that respects and enhances the freedom of others.
There is no such thing as failure. Failure is just life trying to move us in another direction.
If you're not doing some things that are crazy, then you're doing the wrong things.