Philosophy of Mathematics
Linnebo, Øystein
Austerity: The History of a Dangerous Idea
Mark Blyth
Philosophy and Theurgy in Late Antiquity
Algis Uzdavinys & John F. Finamore
The Road to Reality: A Complete Guide to the Laws of the Universe
Roger Penrose
Periphyseon: Division of Nature
Johannes Scotus Erigena