Time Enough For Love
Robert A. Heinlein
The Works of Saint Augustine: A Translation for the 21st Century
Saint Augustine (of Hippo) & Augustin ((saint ;)
Dialogue and Dialectic: Eight Hermeneutical Studies on Plato
Hans-Georg Gadamer
Physics From Symmetry
Jakob Schwichtenberg
The Key to Theosophy
Helena Petrovna Blavatsky
Developmental Psychology of Jean Piaget
John Hurley Flavell & Jean Piaget