Thomas Paine

“ Every science has for its basis a system of principles as fixed and unalterable as those by which the universe is regulated and governed. Man cannot make principles, he can only discover them.
For example: Every person who looks at an almanack sees an account when an eclipse will take place, and he sees also that it never fails to take place according to the account there given. This shows that man is acquainted with the laws by which the heavenly bodies move. But it would be something worse than ignorance, were any church on earth to say that those laws are an human invention. ”

“ The man who proportions the several parts of a mill uses the same scientific principles as if he had the power of constructing an universe, but as he cannot give to matter that invisible agency by which all the component parts of the immense machine of the universe have influence upon each other, and act in motional unison together, without any apparent contact, and to which man has given the name of attraction, gravitation, and repulsion, he supplies the place of that agency by the humble imitation of teeth and cogs. ”

“ It is the structure of the universe that has taught this knowledge to man. That structure is an ever-existing exhibition of every principle upon which every part of mathematical science is founded. The offspring of this science is mechanics; for mechanics is no other than the principles of science applied practically. ”

“ What has man to do with the Pleiades, with Orion, with Sirius, with the star he calls the north star, with the moving orbs he has named Saturn, Jupiter, Mars, Venus, and Mercury, if no uses are to follow from their being visible? A less power of vision would have been sufficient for man, if the immensity he now possesses were given only to waste itself, as it were, on an immense desert of space glittering with shows. ”

“ Of what use is it, unless it be to teach man something, that his eye is endowed with the power of beholding, to an incomprehensible distance, an immensity of worlds revolving in the ocean of space? Or of what use is it that this immensity of worlds is visible to man? ”

“ That which is now called natural philosophy, embracing the whole circle of science, of which astronomy occupies the chief place, is the study of the works of God, and of the power and wisdom of God in his works, and is the true theology.
As to the theology that is now studied in its place, it is the study of human opinions and of human fancies concerning God. It is not the study of God himself in the works that he has made, but in the works or writings that man has made ”

“ Every principal art has some science for its parent, though the person who mechanically performs the work does not always, and but very seldom, perceive the connection.
It is a fraud of the Christian system to call the sciences human inventions; it is only the application of them that is human. ”

“ It professes to believe in a man rather than in God. It is a compound made up chiefly of man-ism with but little deism, and is as near to atheism as twilight is to darkness. It introduces between man and his Maker an opaque body, which it calls a redeemer, as the moon introduces her opaque self between the earth and the sun, and it produces by this means a religious or an irreligious eclipse of light. ”

“ The scientific principles that man employs to obtain the foreknowledge of an eclipse, or of any thing else relating to the motion of the heavenly bodies, are contained chiefly in that part of science that is called trigonometry, or the properties of a triangle, which, when applied to the study of the heavenly bodies, is called astronomy ”

“ Man had no more to do in the formation of those properties or principles, than he had to do in making the laws by which the heavenly bodies move; and therefore the one must have the same divine origin as the other. ”

“ All the parts of man's microcosm must visibly touch. But could he gain a knowledge of that agency, so as to be able to apply it in practice, we might then say that another canonical book of the word of God had been discovered. ”

“ Since, then, man cannot make principles, from whence did he gain a knowledge of them, so as to be able to apply them, not only to things on earth, but to ascertain the motion of bodies so immensely distant from him as all the heavenly bodies are? ”