The Writings of Thomas Paine — Volume 4 (1794-1796): The Age of Reason

by Thomas Paine

The Book of Job and the 19th Psalm, which even the church admits to be more ancient than the chronological order in which they stand in the book called the Bible, are theological orations conformable to the original system of theology. The internal evidence of those orations proves to a demonstration that the study and contemplation of the works of creation, and of the power and wisdom of God revealed and manifested in those works, made a great part of the religious devotion of the times in which they were written; and it was this devotional study and contemplation that led to the discovery of the principles upon which what are now called Sciences are established; and it is to the discovery of these principles that almost all the Arts that contribute to the convenience of human life owe their existence. 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. 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.

It would also be ignorance, or something worse, to say that the scientific principles, by the aid of which man is enabled to calculate and foreknow when an eclipse will take place, are an human invention. Man cannot invent any thing that is eternal and immutable; and the scientific principles he employs for this purpose must, and are, of necessity, as eternal and immutable as the laws by which the heavenly bodies move, or they could not be used as they are to ascertain the time when, and the manner how, an eclipse will take place.

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; when applied to direct the course of a ship on the ocean, it is called navigation; when applied to the construction of figures drawn by a rule and compass, it is called geometry; when applied to the construction of plans of edifices, it is called architecture; when applied to the measurement of any portion of the surface of the earth, it is called land-surveying. In fine, it is the soul of science. It is an eternal truth: it contains the mathematical demonstration of which man speaks, and the extent of its uses are unknown.

It may be said, that man can make or draw a triangle, and therefore a triangle is an human invention.

But the triangle, when drawn, is no other than the image of the principle: it is a delineation to the eye, and from thence to the mind, of a principle that would otherwise be imperceptible. The triangle does not make the principle, any more than a candle taken into a room that was dark, makes the chairs and tables that before were invisible. All the properties of a triangle exist independently of the figure, and existed before any triangle was drawn or thought of by man. 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.

In the same manner as, it may be said, that man can make a triangle, so also, may it be said, he can make the mechanical instrument called a lever. But the principle by which the lever acts, is a thing distinct from the instrument, and would exist if the instrument did not; it attaches itself to the instrument after it is made; the instrument, therefore, can act no otherwise than it does act; neither can all the efforts of human invention make it act otherwise. That which, in all such cases, man calls the effect, is no other than the principle itself rendered perceptible to the senses.

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? From whence, I ask, could he gain that knowledge, but from the study of the true theology?

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. 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. 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.