Abstract
I am pleased to participate in this joint Critical Notice, in part because it is an opportunity to pay a debt of gratitude. Thirteen years ago, as a Toronto undergraduate with interests in things like Hegelian metaphysics, I enrolled in an ethics seminar with Wayne Sumner. I had not done any ethics before, and took this course largely because I thought I ought to. But it turned out to be the best course of my undergraduate career, and permanently changed my philosophical interests. Having learned what I did in the seminar I have been doing ethics ever since—so, thank you, Wayne.