The general laws of Nature are not, for the most part, immediate objects of perception. They are either inductive inferences from a large body of facts, the common truth in which they express, or, in their origin at least, physical hypotheses of a causal nature serving to explain phenomena with undeviating precision, and to enable us to predict new combinations of them.
— George Boole, Inventor of Boolean Logic, “An Investigation of the Laws of Thought” (1854), Ch. 1. Nature And Design Of This Work, p. 4