We are not afraid to take risks, but we do so intelligently.

"The scars of history are not always visible, but they are always there."

理论物理学之于数学，犹如雕塑之于大理石块。

爱说教的男人通常是伪君子，爱说教的女人必定平庸。

Knowledge is represented in the mind as symbolic structures.

Success is not final, failure is not fatal: it is the courage to continue that counts.

一些意志坚定的人在经受生离死别考验时表现出令人羡慕的顺从与刚毅。

消灭一个民族的第一步是抹去它的记忆。摧毁它的书籍，它的文化，它的历史。然后让某人写新书，制造新文化，发明新历史。不久之后，这个民族就会开始忘记它是什么以及它曾经是什么。