Positivism is a philosophy developed by Auguste Comte in the beginning of the 19th century, which stated that the only authentic knowledge is scientific knowledge.

Bacon did not propose an actual philosophy, but rather a method of developing philosophy; he wrote that, whilst philosophy at the time used the deductive syllogism to interpret nature, the philosopher should instead proceed through inductive reasoning from fact to axiom to law. Before beginning this induction, the inquirer is to free his mind from certain false notions or tendencies which distort the truth. These are called "Idols" (idola), and are of four kinds: "Idols of the Tribe" (idola tribus), which are common to the race; "Idols of the Den" (idola specus), which are peculiar to the individual; "Idols of the Marketplace" (idola fori), coming from the misuse of language; and "Idols of the Theater" (idola theatri), which result from an abuse of authority. The end of induction is the discovery of forms, the ways in which natural phenomena occur, the causes from which they proceed. Bacon's developments of the inductive philosophy would revolutionize the future thought of the human race.