David Hume,
An Enquiry Concerning the Principles of Morals
(1751)
“ He must move some universal Principle of the human Frame, and touch a String, to which all Mankind have an Accord and Symphony. If he means, therefore, to express, that this Man possesses Qualities, whose Tendency is pernicious to Society, he has chosen this common Point in View, and has touch'd the Principle of Humanity, in which every Man, in some Degree, concurs. ”
