"'Contented?' he answered, merrily. 'I am never contented, except with your freshness, my gentle Daisy. As to fitfulness, I have never learnt the art of binding myself to any of the wheels on which the Ixions of these days are turning round and round. I missed it somehow in a bad apprenticeship, and now don't care about it. - You know I have bought a boat down here?' "

In Greek mythology, Ixion made advances to Hera, wife of Zeus, who eventually condemned him to be bound to a whirling wheel for eternity. Here is a URL about it:
http://homepage.mac.com/cparada/GML/Ixion.html