1. Self knowledge: a treatise, shewing the nature and benefit of that important science, and the way to attain it ; intermixed with various reflections and observations on human nature Author(s): Mason, John, 1706-1763 Publication: Printed at Boston : By I. Thomas and E.T. Andrews, Faust's Statue, no. 45, Newbury Street, 1793 Subject(s): EthicsSelf Concept