Some scientists find, or so it seems, that they get their best ideas when smoking; others by drinking coffee or whisky. Thus there is no reason why I should not admit that some may get their ideas by observing, or by repeating observations.
Karl PopperI have come to the conclusion that Darwinism is not a testable scientific theory, but a metaphysical research programme.
Karl PopperThere is no history of mankind, there is only an indefinite number of histories of all kinds of aspects of human life.
Karl Popper