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.
Robert A. Heinlein
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I am an optimist, unrepentant and militant. After all, in order not to be a fool, an optimist must know what a sad place the world can be. It is only the pessimist who finds this out anew every day.
Peter Ustinov
Basically I'm an optimist. Intellectually I can see man's balance is about fifty-fifty, and his chances of blowing himself up are about one to one. I can't see this any way but intellectually. I'm just emotionally unable to believe that he will do this. This means that I am by nature an optimist and by intellectual conviction a pessimist, I suppose.
William Golding
I’m a pessimist because of intelligence, but an optimist because of will.
Antonio Gramsci
An optimist may see a light where there is none, but why must the pessimist always run to blow it out?
Rene Descartes
A pessimist is a man who has been compelled to live with an optimist.
Elbert Hubbard
Heinlein, Robert A.
Heinrich, Bernd
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