About seven years later I was given a book about the periodic table of the elements. For the first time I saw the elegance of scientific theory and its predictive power. Sidney Altman
To deny the predictive validity of race at this level is nonscientific and unrealistic. J. Philippe Rushton
The truly privileged theories are not the ones referring to any particular scale of size or complexity, nor the ones situated at any particular level of the predictive hierarchy, but the ones that contain the deepest explanations. David Deutsch
