In other living creatures the ignorance of themselves is nature, but in men it is a vice.

In other living creatures the ignorance of themselves is nature, but in men it is a vice.

在其他生物中，他们自己的无知是自然的，但在人类中，这是一种恶习。

-- Anicius Manlius Severinus Boëthius 阿尼西乌斯·曼留斯·塞维纳斯·博伊修斯