A Course of Pure Mathematics (1921)
G H Hardy
G.W. Leibniz, Interrelations Between Mathematics and Philosophy
Norma B. Goethe & Philip Beeley & David Rabouin
The Battle for God
Karen Armstrong
The Time of Our Lives: The Ethics of Common Sense
Mortimer Jerome Adler
The Perfect Heresy: The Life and Death of the Cathars
Stephen O'Shea
How to Work with (Almost) Anyone
Michael Bungay Stanier