Quotes about Karl Popper

6 Sourced Quotes

The Steady State theory was what Karl Popper would call a good scientific theory: it made definite predictions, which could be tested by observation, and possibly falsified. Unfortunately for the theory, they were falsified.

Stephen Hawking

As philosopher of science Karl Popper has emphasized, a good theory is characterized by the fact that it makes a number of predictions that could in principle be disproved or falsified by observation.

Stephen Hawking

Libertarianism offers an alternative to coercive government that should appeal to peaceful, productive people everywhere.
No, a libertarian world isn't a perfect one. There will still be inequality, poverty, crime, corruption, man's inhumanity to man. But, unlike the theocratic visionaries, the pie-in-the-sky socialist utopians, or the starry-eyed Mr. Fixits of the New Deal and Great Society, libertarians don't promise you a rose garden. Karl Popper once said that attempts to create heaven on earth invariably produce hell. Libertarianism holds out, not the goal of a perfect society, but of a better and freer one. It promises a world in which more of the decisions will be made in the right way by the right person: you.

According to the most influential twentieth-century philosopher of science, Karl Popper, a theory is scientific only in so far as it is falsifiable, and should be given up as soon as it has been falsified. By this standard, the theories of Darwin and Einstein should never have been accepted.

An open society such as ours is based on the recognition that our understanding of reality is inherently imperfect. Nobody is in possession of the ultimate truth. As the philosopher Karl Popper has shown, the ultimate truth is not attainable even in science. All theories are subject to testing and the process of replacing old theories with better ones never ends.

When we seek a textbook case for the proper operation of science, the correction of certain error offers far more promise than the establishment of probable truth. Confirmed hunches, of course, are more upbeat than discredited hypotheses. Since the worst traditions of popular writing falsely equate instruction with sweetness and light, our promotional literature abounds with insipid tales in the heroic mode, although tough stories of disappointment and loss give deeper insight into a methodology that the celebrated philosopher Karl Popper once labeled as conjecture and refutation.

Stephen Jay Gould