"The dead are invisible, they are not absent."

The most powerful tool for change is knowledge, rigorously pursued and widely shared.

我对记忆了解得越多，就越不信任它。

物理学家必须有一种信念，即自然之书是用一种他可以学会阅读的语言写成的。

People always feel happier when approaching happiness but become anxious when happiness is ongoing.