Starting out from the fact ...

Starting out from the fact that the frustrated predominate among the early adherents of all mass movements and that they usually join of their own accord, it is assumed: 1) that frustration of itself, without any proselytizing prompting from the outside, can generate most of the peculiar characteristics of the true believer; 2) that an effective technique of conversion consists basically in the inculcation and fixation of proclivities and responses indigenous to the frustrated mind.
Starting out from the fact that the frustrated predominate among the early adherents of all mass movements and that they usually join of their own accord, it is assumed: 1) that frustration of itself, without any proselytizing prompting from the outside, can generate most of the peculiar characteristics of the true believer; 2) that an effective technique of conversion consists basically in the inculcation and fixation of proclivities and responses indigenous to the frustrated mind.

Quotes from the same author

In times of change, learners inherit the earth, while the learned find themselves beautifully equipped to deal with a world that no longer exists.
Man's chief goal in life is still to become and stay human, and defend his achievements against the encroachment of nature.
The Paleolithic hunters who painted the unsurpassed animal murals on the ceiling of the cave at Altamira had only rudimentary tools. Art is older than production for use, and play older than work. Man was shaped less by what he had to do than by what he did in playful moments. It is the child in man that is the source of his uniqueness and creativeness, and the playground is the optimal milieu for the unfolding of his capacities.
You cannot gauge the intelligence of an American by talking with him; you must work with him. The American polishes and refines his way of doing things-even the most commonplace-the way the French of the 17th century polished their maxims.
Craving, not having, is the mother of a reckless giving of oneself.