„Politics is a science. You can demonstrate that you are right and that others are wrong.“

— Jean Paul Sartre

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„There are many hypotheses in science which are wrong. That’s perfectly all right: it’s the aperture to finding out what’s right. Science is a self-correcting process.“
— Carl Sagan
„The work of science is to substitute facts for appearances, and demonstrations for impressions.“
— John Ruskin
„You are right in speaking of the moral foundations of science, but you cannot turn around and speak of the scientific foundations of morality.“
— Albert Einstein