Perhaps I know best why it is man alone who laughs; he alone suffers so deeply that he had to invent laughter.

Perhaps I know best why it is man alone who laughs; he alone suffers so deeply that he had to invent laughter.

也许我最明白为什么只有人类才笑;只有他一个人承受着如此之深的痛苦，他不得不发明笑。

-- Friedrich Nietzsche 弗里德里希·尼采