ABSTRACT
The observation of nature was the first study of those who had leisure to meditate: they could not avoid being struck with the phenomena of the visible world. The rising and setting of the sun, the periodical return of the seasons, the variations of the atmosphere, the fertility and sterility of the earth, the advantages of irrigation, the damage caused by floods, the useful effects of fire, the terrible consequences of conflagration, were proper and suitable objects to occupy their thoughts. The idea of the unity of God, which cost Socrates his life, because the Athenians considered those Atheists who believed but in one, was the tardy fruit of human meditation. Plato himself did not dare to break entirely the doctrine of Polytheism; he preserved Venus, an all-powerful Jupiter, and a Pallas, who was the goddess of the country.
