‘...This then is the knowledge which Greek philosophy meant: not mere intellect—though, of course, there is always a danger of theoretical inquiry degenerating into abstract and formal dogma. But of the meaning there can be no serious doubt. It is a knowledge, says Plato, to which the method of mathematical science—the most perfect he can find acknowledged—is only an ouverture, or perhaps, only the preliminary tuning of the strings. It is a knowledge not eternally hypothetical—a system of sequen ...