The optimist thinks this is the best of all possible worlds. The pessimist fears it is true.

Yet creeds mean very little, Coth answered the dark god, still speaking almost gently. The optimist proclaims that we live in the best of all possible worlds; and the pessimist fears this is true.

The pessimist waits for better times, and expects to keep on waiting; the optimist goes to work with the best that is at hand now, and proceeds to create better times.

All is for the best in the best of all possible worlds.

I am become death, the destroyer of worlds.

I'm not a pessimist at all, but I'm not an optimist, either.