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An enemy to whom you show kindness becomes your friend, excepting lust, the indulgence of which increases its enmity.

When a sinister person means to be your enemy, they always start by trying to become your friend.

A friend is one who has the same enemies as you have.

Nothing is more dangerous than a friend without discretion; even a prudent enemy is preferable.

Nothing is as dangerous as an ignorant friend; a wise enemy is to be preferred.

Evil is unintelligible. It is just a thing in itself, like boarding a crowded commuter train wearing only a giant boa constrictor. There is no context which would make it explicable.

It is bitter to lose a friend to evil, before one loses him to death.

One that confounds good and evil is an enemy to good.

In order to have an enemy, one must be somebody. One must be a force before he can be resisted by another force. A malicious enemy is better than a clumsy friend.