我们面临这样一个进退两难的境地，即教育已经成为智慧和自由思想最主要的障 碍之一。

The failure of an enterprise is not accidental, but inevitable.

To lose one parent may be regarded as a misfortune; to lose both looks like carelessness.

追求科学不仅仅是追求理解。它是追求奇迹。