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Karl Popper has 121 quotes on this site. A few more worth reading:
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Science is not a system of certain, or -established, statements; nor is it a system which steadily advances towards a state of…
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I think that we shall have to get accustomed to the idea that we must not look upon science as a 'body…
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It is a myth that the success of science in our time is mainly due to the huge amounts of money that…
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The history of science, like the history of all human ideas, is a history of irresponsible dreams, of obstinacy, and of error.…
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Good tests kill flawed theories; we remain alive to guess again.
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It is not his possession of knowledge, of irrefutable truth, that makes the man of science, but his persistent and recklessly critical…
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The growth of our knowledge is the result of a process closely resembling what Darwin called 'natural selection'; that is, the natural…
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Science does not rest upon solid bedrock. The bold structure of its theories rises, as it were, above a swamp. It is…
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The scientific tradition is distinguished from the pre-scientific tradition by having two layers. Like the latter, it passes on its theories; but…
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Thus science must begin with myths, and with the criticism of myths; neither with the collection of observations, nor with the invention…
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In point of fact, no conclusive disproof of a theory can ever be produced; for it is always possible to say that…
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It is easy to obtain confirmations, or verifications, for nearly every theory-if we look for confirmations. Confirmations should count only if they…
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Popular Oldest quotes from across the collection:
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It is my contention that civil disobediences are nothing but the latest form of voluntary association, and that they are thus quite…
— Hannah Arendt
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There is no gardening without humility. Nature is constantly sending even its oldest scholars to the bottom of the class for some…
— Alfred Austin
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The oldest books are only just out to those who have not read them.
— Samuel Butler
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The people and the cultures of what is known as Africa are older than the word 'Africa.' According to most records, old…
— John Henrik Clarke
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I like to say magic is the world's second oldest profession, a mystical and often awe-inspiring spectacle that, throughout the ages, has…
— Criss Angel
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We will not bend or fail until the blood of every last Jew from the youngest child to the oldest elder is…
— Yasser Arafat
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So far, this is the oldest I've been.
— George Carlin
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Some think that even the ancients who lived long before the present generation, and first framed accounts of the Gods, had a…
— Mary Hunter Austin
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I prayed fifteen years for the conversion of my oldest brother. When he seemed to be getting further and further away from…
— Reuben Archer Torrey
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American society is very like a fish society. . . . Among certain species of fish, the only thing which determines order…
— Margaret Mead
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Words of comfort, skillfully administered, are the oldest therapy known to man.
— Louis Nizer
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War is a racket. It always has been. It is possibly the oldest, easily the most profitable, surely the most vicious.
— Smedley Butler
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