Abstract

Aristotle's word for science is epistêmê, which has at least a dual use in the Greek of his day and is standardly used, in one way, as a count noun, to mean “a science.” Thus, in this usage, one can say that geometry, or phusikê, or metaphysics is epistêmê, a science. Here the term epistêmê designates a special sort of systematic body of truth or fact that may or may not have yet been discovered, or fully discovered. In Plato's Protagoras, Socrates uses the term epistêmê for knowledge of the particular right moral action to perform on some specific occasion and he is followed in this use of the term by Aristotle in Nicomachean Ethics VII.2. Aristotle claims that scientific principles are reached by induction.