Teleology, from Greek τέλος, telos "end, purpose"[3] and -λογία, logia, "a branch of learning", was coined by the philosopher Christian von Wolff in 1728.[4] The concept derives from the ancient Greek philosophy of Aristotle, where the final cause (the purpose) of a thing is its function.[5] However, Aristotle's biology does not envisage evolution by natural selection.[6]