In a world of rapid change, the ability to learn and adapt is the ultimate competitive advantage.

But it is the same with man as with the tree. The more he seeks to rise into the height and light, the more vigorously do his roots struggle earthword, downword, into the dark, the deep - into evil.

表演的挑战是让观众忘记他们正在观看一场表演。

纯数学在某种程度上是逻辑思想的诗歌。

Freedom is man's capacity to take a hand in his own development. It is our capacity to mold ourselves.