The most prolific period of pessimism comes at twenty-one, or thereabouts, when the first attempt is made to translate dreams into reality.
A pessimist sees the difficulty in every opportunity, an optimist sees the opportunity in every difficult.
Pessimism - Every dark cloud has a silver lining, but lightning kills hundreds of people each year who are trying to find it.
An optimist is a person who sees a green light everywhere. The pessimist sees only the red light. But the truly wise person is color blind.