A pessimist is someone who has had to listen to too many optimists
A pessimist only sees the dark side of the clouds, and mopes; a philosopher sees both sides and shrugs; an optimist doesn't see the clouds at all--he's walking on them.
A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty.
Don't ever become a pessimist, Ira; a pessimist is correct oftener than an optimist, but an optimist has more fun--and neither can stop the march of events.
No pessimist ever discovered the secret of the stars or sailed to an uncharted land or opened a new heaven to the human spirit.
The optimist proclaims we live in the best of all possible worlds; and the pessimist fears this is true.
The optimist thinks this is the best of all possible worlds. The pessimist fears it is true.