The Origins of Intelligence in Children
Jean Piaget
Das Wahre, Schöne, Gute: Geist und Kultur im 3. Jahrtausend
Kenneth E. Wilber
Longitudinalwelle[..] nach Nikola Tesla
Konstantin Meyl
We the Living
Ayn Rand & Leonard Peikoff
The Difficulty of Tolerance: Essays in Political Philosophy
T. M. Scanlon
Pets and Their Problems: A Guide for Animal Lovers
Maxwell Knight