Montaigne essentially invented the literary form of essay, a short subjective treatment of a given topic, of which the book contains a large number. Montaigne wrote in a kind of crafted rhetoric designed to intrigue and involve the reader, sometimes appearing to move in a stream-of-thought from topic to topic and at other times employing a structured style which gives more emphasis to the didactic nature of his work. His arguments are often supported with quotations from Ancient Greek, Latin and Italian texts. Montaigne's stated goal in his book is to describe man, and especially himself, with utter frankness. He finds the great variety and volatility of human nature to be its most basic features.