Simon Blackburn

http://www.ft.com/cms/s/2/2bf7cf30-b9e1-11e0-8171-00144feabdc0.html#axzz1gzvnfTXM

Putting all these together we get that “an act is wrong just when such acts are disallowed by some principle that is optimific, uniquely universally willable, and not reasonably rejectable”.