Thomas Hobbes Quote
And the Science of them, is the true and onely Moral Philosophy. For Moral Philosophy is nothing else but the Science of what is Good, and Evill, in the conversation, and Society of mankind. Good, and Evill, are names that signify our Appetites, and Aversions; which in different tempers, customes, and doctrines of men, are different.
The First Part, Chapter 15, p. 79. - Leviathan (1651)