Great examples of the illustration of the new age of science. Francis Bacon’s The Great Instauration followed a century of immense activity in the sciences, after discoveries in astronomy by Copernicus, Tycho Brahe, Kepler and galileo; after Gilbert’s experiments with magnetism; and after Vesalius introduced scientific disciplines to the study of anatomy. And the new discoveries caused the Aristotelian authority to totter in the sixteenth-xcentury. The old system could not encompass the new science. In the 1580’s Michel Eyquem de Montaigne’s Essays began, unsystematically but energetically demolishing the last vestiges of Aristotle’s influence.
It was left to two men, Francis bacon and Rene Descartes, to raise a new philosophical structure suited to the new discoveries. Bacon provided a methodology of empiricism; Descartes offered mathematical reasoning and rationalism. For the next few centuries, philosophers would struggle to reconcile Bacon and Descartes; and, although Cartesian philosophy overshadowed Bacon throughout the seventeenth-century, our own age is decidedly Baconian. Three books prepared the way for Bacon’s The Great Instauration: Brahe’s correspondence on astronomical instruments, Kepler’s statements of the three laws of planetary motion, and Montaigne’s Essays…
Bacon never claimed originality for what became known as inductive reasoning. What he did seek to do with his new use of induction was to avoid the sterile logic of the Aristotlean schoolmen. Since this type of thought has virtually vanished from the modern world, we forget that education, in Bacon’s day, was largely confined to metaphysical argument along with the reading of Greek and Roman classics. The techniques of logic, in other words, were being expended upon abstract controversy, while nature itself passed largely unexamined. Men, to paraphrase bacon, were spinning webs out of their own substance. To recapture reality it would be necessary to bring speculation into conformity with reality, to ascend from genuine facts to deductions and to avoid hasty and unsubstantiated theory.