Moral philosophy is nothing else but the science of what is good, and evil, in the conversation, and society of mankind. Good, and evil, are names that signify our appetites, and aversions; which in different tempers, customs, and doctrines of men, are different.
Thomas HobbesBy how much one man has more experience of things past, than another, by so much also he is more prudent, and his expectations the seldomer fail him.
Thomas Hobbes