John Gray Quote

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.

The Human: Science's Irrational Origins (p. 22) - Straw Dogs: Thoughts on Humans and Other Animals (2002)