It is most important in creative science not to give up. If you are an optimist you will be willing to "try" more than if you are a pessimist.
--
Chapter 3, Travels Abroad, p. 55Stanislaw Ulam
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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
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
There is no "scientific worldview" just as there is no uniform enterprise "science"- except in the minds of metaphysicians, school masters, and scientists blinded by the achievements of their own particular niche... There is no objective principle that could direct us away from the supermarket "religion" or the supermarket "art" toward the more modern, and much more expensive supermarket "science." Besides, the search for such guidance would be in conflict with the idea of individual responsibility which allegedly is an important ingredient of a "rational" or scientific age.
Paul Karl Feyerabend
I’m a pessimist because of intelligence, but an optimist because of will.
Antonio Gramsci
Ulam, Stanislaw
Ulbricht, Walter
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