"In its efforts to learn as much as possible about nature, modern physics has found that certain things can never be "known" with certainty. Much of our knowledge must always remain uncertain. The most we can know is in terms of probabilities."

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Oh, the truth, oh yeah, lot of trouble that got us into, didn't it, over the last maybe thousand years? Hitler knew the truth, so did Stalin, so did Mao Zedong, so did the Inquisition. They all knew the truth and that caused such horror. Certainty is the enemy.

— Anthony Hopkins