Thanks to D.G. for this quote and question:
I wonder what Epicurus would have thought had he been able to read the following passage in Hobbes' Leviathan:
"Continual success in obtaining those things which a man from time to time desireth, that is to say, continual prospering, is that men call Felicity; I mean the felicity of this life. For there is no such thing as perpetual tranquility of mind, while we live here, because life is but motion, and can never be without desire, nor without fear, no more than without sense."