What Socrates and Plato call sophistry is nothing else than argumentation from grounds; Plato opposed to it the examination of the idea, that is, of a fact in and for itself or in its conce Grounds are taken only from essential determinations of content, relations and points of view, of which each fact and also its opposite can have several; in their form of essentiality, each is just as valid as the next; each is a one sided ground, because none contains the whole compass of the fact for which other particular sides then provide other particular grounds, and none exhausts the fact that links them together and contains them all; none is the sufficient ground or reason, that is, the concept.