The opposite of a correct statement is a false statement. But the opposite of a profound truth may well be another profound truth.

The metropolis exacts from man as a discriminating creature a different amount of consciousness than does rural life.

恐惧是人类如此强大的情感，以至于当我们允许它控制我们时，它会驱赶我们心中的同情。

要只按照你同时认为也能成为普遍规律的准则去行动。