Introduction to the Integral Approach (and the AQAL Map)
Kenneth E. Wilber
Metaphors We Live By
George Lakoff & Mark Johnson
The Pairs
Dhammapada
Readings in the Philosophy of Technology
David M. Kaplan
Ursprung und Hintergrund seiner Lehre
John G. Bennett
Hymns to an unknown God : awakening the spirit in everyday life
Sam Keen