I thought these grapes were ripe, but I see now they are quite sour.
We hang the petty thieves and appoint the great ones to public office.
Conceit may bring about one's own downfall.
In serving the wicked, expect no reward, and be thankful if you escape injury for your pains.
He that has many friends, has no friends.
A Fox entered the house of an actor and, rummaging through all his properties, came upon a Mask, an admirable imitation of a human head. He placed his paws on it and said, "What a beautiful head! Yet it is of no value, as it entirely lacks brains."