The dogmas taught by remarkable sects will be adduced; and to these will be opposed all that ought to be premised in accordance with the profoundest contemplation of the knowledge, which, as we proceed to the renowned and venerable canon of tradition, from the creation of the world, will advance to our view; setting before us what according to natural contemplation necessarily has to be treated of beforehand, and clearing off what stands in the way of this arrangement. So that we may have our ears ready for the reception of the tradition of true knowledge;
Clement of Alexandria
The Stromata, Book I
Chapter I