Conversation should touch everything but should concentrate itself on nothing.

The human voice is the most perfect instrument of all.

"Un libro es una conversación entre el autor y el lector a través del tiempo."

If you want to grow, you must be willing to adapt.

Profit is not the legitimate purpose of business. The legitimate purpose of business is to provide a product or service that people need and do it so well that it's profitable.

自旋玻璃的数学揭示了一个适用于许多看似无关问题的隐藏结构。

我不是那种会让我的家人失望的人。