All the knowledge man has ... Thomas Paine.

"All the knowledge man has of science and of machinery, by the aid of which his existence is rendered comfortable upon earth, and without which he would be scarcely distinguishable in appearance and condition from a common animal, comes from the great machine and structure of the universe. The constant and unwearied observations of our ancestors upon the movements and revolutions of the heavenly bodies, in what are supposed to have been the early ages of the world, have brought this knowledge upon earth. It is not Moses and the prophets, nor Jesus Christ, nor his apostles, that have done it. The Almighty is the great mechanic of the creation; the first philosopher and original teacher of all science. Let us, then, learn to reverence our master, and let us not forget the labors of our ancestors."

Thomas Paine, The Age of Reason