‘Facts do not “speak for themselves”; they are read in the light of theory. Creative thought, in science as much as in the arts, is the motor of changing opinion. Science is a quintessentially human activity, not a mechanized, robotlike accumulation of objective information, leading by laws of logic to inescapable interpretations.’

Stephen Jay Gould (Professor of Geology and Paleontology, Harvard University), ‘The validation of continental drift’ in his book ‘Ever Since Darwin’, W.W. Norton, 1977, p.161.