“The history of science, like the history of all human ideas, is a history of irresponsible dreams, of obstinacy, and of error.… — Karl R. Popper Dreams Copy Share Image
“The prophetic element in Marx’s creed was dominant in the minds of his followers. It swept everything else aside, banishing the power… — Karl R. Popper Change the world Copy Share Image
“According to this conception, the ultimate causes of all social changes and political revolutions are not increasing insight into justice; they are… — Karl R. Popper Change Copy Share Image
“Should you ever intend to dull the wits of a young man and to incapacitate his brains for any kind of thought… — Karl R. Popper Hegel Copy Share Image
“For Aristotle’s essentialist definitions are the principles from which all our knowledge is derived; they thus contain all our knowledge; and they… — Karl R. Popper Copy Share Image
“My argument against a naive form of empiricism was essentially anticipated by Mark Twain. On his first appointment as a reporter, he… — Karl R. Popper Empiricism Copy Share Image
“Marx was led to hold that the workers cannot hope much from the improvement of a legal system which as everybody knows… — Karl R. Popper Labour day Copy Share Image
“Nationalism appeals to our tribal instincts, to passion and to prejudice, and to our nostalgic desire to be relieved from the strain… — Karl R. Popper Individual responsibility Copy Share Image
“I found that those of my friends who were admirers of Marx, Freud, and Adler, were impressed by a number of points… — Karl R. Popper Opening your eyes Copy Share Image
“All political ideals, that of making the people happy is perhaps the most dangerous one. It leads invariably to the attempt to… — Karl R. Popper Freedom Copy Share Image
“The arguments underlying Marx’s historical prophecy are invalid. His ingenious attempt to draw prophetic conclusions from observations of contemporary economic tendencies failed.… — Karl R. Popper Failure Copy Share Image
“I am not in all cases and under all circumstances against a violent revolution. I believe with some medieval and Renaissance Christian… — Karl R. Popper Revolution Copy Share Image
