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

