The rat in the maze is not just learning a series of turns, but is building up a cognitive map of the whole situation.

数学中最重要的是理解概念，而不仅仅是记忆公式。

艺术是上帝赐予人类的礼物。

I think of a hero as someone who understands the degree of responsibility that comes with his freedom.

Live as though you intend to live forever，and work as though your strength were limitless.

I think the most important thing is to be honest and truthful.