An optimist believes this is the best possible universe. The opposite of optimists is pessimists who fear this to be true.

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"An optimist thinks that this is the best possible world. A pessimist fears that this is true."

- Robert Oppenheimer

Belief

"There is something irreversible about acquiring knowledge; and the simulation of the search for it differs in a most profound way from the reality."

- Robert Oppenheimer

Knowledge

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"The pessimist sees difficulty in every opportunity. The optimist sees opportunity in every difficulty."

- Winston Churchill

Optimism

"Optimism is the faith that leads to achievement. Nothing can be done without hope and confidence."

- Helen Keller

Optimism

"Opportunities don’t happen, you create them."

- Chris Grosser

Optimism

"You will soon feel as if nothing was done to you. The surgery will be fast and smooth. Good luck with your surgery!"

Optimism

"Teaching is the greatest act of optimism."

- Colleen Wilcox

Optimism