Present fears are less than horrible imaginings.
Friendship is full of dregs.
O God, that men should put an enemy in their mouths to steal away their brains!" - Cassio (Act II, Scene iii)
He uses his folly like a stalking-horse, and under the presentation of that he shoots his wit.
It is a sin to be a mocker.
Keep up your bright swords, for the dew will rust them.