Porphyry's Launching-Points to the Realm of Mind: An Introduction ...
Porphyry & Kenneth Sylvan Guthrie & Michael Hornum
Dietrich Eckart
William Gillespie
Porphyry's Letter to His Wife: Concerning the Life of Philosophy ...
Porphyry & Alice Zimmern & David Fideler
A Book About You
Charles F. Haanel
Biocentrism
Robert Lanza & Bob Berman