"In reality, the so called science of the middle ages is scarcely worthy of the name. Infinitely inferior as compared with modern science, it was still more crude, more distorted, more fantastic and illusory than that of ancient times. Medieval man had no clear-eyed perception of the visible world, actuality possessed for him little value, that which really is and happens was without special significance in his eyes. What the medieval man saw he interpreted as a symbol, what he heard he understood as an allegory. Dante himself is our best witness that cultivated men of his age esteemed the speculative life vastly superior to the practical."