Quotes by : Karl R. Popper

We can all participate in the heritage of man. We all can help to preserve it. And we can all make our....

No rational argument will have a rational effect on a man who does not want to adopt a rational attitude.....

It is complete nihilism to propose laying down arms in a world where atom bombs are around. It is very....

I remained a socialist for several years, even after my rejection of Marxism; and if there could be such....

Aestheticism and radicalism must lead us to jettison reason, and to replace it by a desperate hope for....

We all have an unscientific weakness for being always in the right, and this weakness seems to be particularly....

The more we learn about the world, and the deeper our learning, the more conscious, specific, and articulate....

I do not believe that human lives may be made the means for satisfying an artist's desire for self-expression.....

Denying realism amounts to megalomania.

It is often asserted that, in view of the situation in quantum theory, object and subject can no longer....