The historian's first duty is to tell the truth as he sees it, regardless of whom it pleases or displeases.

I'm not a king, I'm not a god, I'm just a man who's trying to make sense of the world.

The psychologist must be an impartial observer.

他人很重要。

我们每天可支配的时间是弹性的；我们感受到的激情会扩展它，我们激发的激情会收缩它。

正如几何学最自然的起点是数学点，在观察和自然历史中采用同样的方法也最真实、简单且富有教益。

The very important thing you should have is patience.

艺术家必须是不可见之物的翻译者。