Garan, D. G. (1963). The paradox of psychological causation. In D. G. Garan, The paradox of pleasure and relativity: The psychological causal law (pp. 1-24). New York, NY, US: Philosophical Library.
http://dx.doi.org/10.1037/13106-001
The most significant confirmation of relative causation is found in our practical life and cultural tradition. Man cannot accept the causal truth of relativity consciously. But when he has to develop his motivations--by following unconsciously evolved, often superstitiously explained, cultural traditions--he has to use methods that comply accurately with the causal law. Culture has become a system of restrictions under which new needs are evolved. This sounds like a truism, but has a deeper meaning. In order to increase the possibility of satisfaction or pleasure, need or restriction has to be increased. This is the only way to produce more motivation--actually, more pleasure, which is the source of all motivation. The paradox of psychological causation lies in the fact that pleasure is the source of all motivation, but it can be increased only by first increasing its opposite--displeasure or restriction. In the light of this paradox it becomes clear why all cultural, educational, moral and religious systems are restrictive. Restriction of enjoyment of the natural drives, especially of sexual pleasures, has been the main purpose of all cultural traditions. Sexual satisfactions are the source of feelings of the highest beauty, and of the richest psychological releases. But they are under the strictest taboos in all cultures. To take another example, personal freedom and the pursuit of one's own interests or judgments are the highest values. But bending the will of the growing individual, keeping him hermetically closured in the atmosphere of his family or cultural group, and teaching him deference to authority, constitute the basis of education in all cultures. (PsycINFO Database Record (c) 2016 APA, all rights reserved)