The books that we reread the most are the ones that most clearly describe the world we already know.

"The past is always present in the way we live now."

方程式对我更重要，因为政治只看眼前，而方程式是永恒的。

善恶之间的分界线贯穿每个人的内心。

一本书是通向想象力和知识的敞开之窗。