David hume (1711-76) devoted himself from early youth to 'philosophy and great learning'. A Treatise of Human Nature (1739-40) was not well received on publication, but is now viewed as his masterpiece. Ernest Campbell Mossner is the author of many books on Hume. He has received fellowships from Columbia, Guggenheim and Fulbright, and has held the post of Professor of English and Philosophy at the University of Texas.