René Descartes: Principles of Philosophy: Translated, With Explanatory ...
René Descartes
Roots of the Human Condition
Frithjof Schuon
Art & Illusion
E. H. Gombrich
Iamblichi Chalcidensis in Platonis Dialogos Commentariorum Fragmenta
John M. Dillon
A Theory of Fun for Game Design
Raph Koster