在炮火下进入脑海的思想会牢固而永久地留在那里。

The great philosophers are those who have made a difference in the way we think about the world and our place in it.

每个项目都是一次新的冒险，一次新的挑战。

We teach a subject not to produce little living libraries on that subject, but rather to get a student to think mathematically for himself.

【译文】 孔子说：“道听途说就是道德败坏。”