"…one also sees that it has almost never happened that any of [the great philosophers'] followers had ever surpassed them, and I am sure that the most impassioned of those who now follow Aristotle would believe themselves fortunate, if they had as much knowledge of nature as he had, even if it were on the condition that they would never have any more. They are like ivy, which never stretches any higher than the trees supporting it, and which often even descends again after it has reached their tops, for it seems to me that they too are redescending, that is, they are making themselves somehow less knowledgeable than if they abstained from studying; not content with knowing all that is intelligibly explained in their author, they want in addition to find the solutions there to many difficulties about which he says nothing and about which he has perhaps never thought."— René Descartes, Discourse on Method, trans. Donald A. Cress, 39
