method, especially in its separation of mind and body (with the linking them). Cartesians such as Henricus Regius, Geraud de Cordemoy, and Nicolas Malebranche realized that Descartes's logic could give no evidence of the "external world" at all, meaning it had to be taken on faith. Though his own proposed solution was even more controversial, Berkeley famously wrote that enlightenment requires a "revolt from metaphysical notions to the plain dictates of nature and common sense". Descartes and the Cartesian "rationalists", rejected reliance upon experience, the senses and inductive reasoning, and seemed to insist that certainty was possible. The alternative to induction, deductive reasoning, demanded a mathematical approach, starting from simple and certain assumptions. This in turn required Descartes (and later rationalists such as Kant) to assume the existence of innate or "" knowledge in the human mind—a controversial proposal. In contrast to the rationalists, the "empiricists" took their orientation from Francis Bacon, whose arguments for methodical science were earlier than those of Descartes, and less directed towards mathematics and certainty. Bacon is known for his doctrine of the "idols of the mind", presented in his Novum Organum, and in his Essays described normal human thinking as biased towards believing in lies. But he was also the opponent of all metaphysical explanations of nature, or over-reaching speculation generally, and a proponent of science based on small steps of experience, experimentation and methodical induction. So while agreeing upon the need to help common sense with a methodical approach, he also insisted that starting from common sense, including especially common sense perceptions, was acceptable and correct. He influenced Locke and Pierre Bayle, in their critique of metaphysics, and in 1733 Voltaire "introduced him as the "father" of the scientific method" to a French audience, an understanding that was widespread by 1750. Together with this, references to "common sense" became positive and associated with modernity, in contrast to negative references to metaphysics, which was associated with the . As mentioned above, in terms of the more general epistemological implications of common sense, modern philosophy came to use the term common sense like Descartes, abandoning Aristotle's theory. While Descartes had distanced himself from it, John Locke abandoned it more openly, while still maintaining the idea of "common sensibles" that are perceived. But then George Berkeley abandoned both. David Hume agreed with Berkeley on this, and like Locke and Vico saw himself as following Bacon more