True happiness consists in decreasing the difference between our desires and our powers, in establishing a perfect equilibrium between the power and the will. Then only, when all its forces are employed, will the soul be at rest and man will find himself in his true position.
 Jean-Jacques Rousseau, Emile, or On Education (1762). copy citation

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Author Jean-Jacques Rousseau
Source Emile, or On Education
Topic happiness power
Date 1762
Language English
Reference
Note Translated by Barbara Foxley
Weblink http://www.gutenberg.org/cache/epub/5427/pg5427-images.html

Context

“The mere limitation of our desires is not enough, for if they were less than our powers, part of our faculties would be idle, and we should not enjoy our whole being; neither is the mere extension of our powers enough, for if our desires were also increased we should only be the more miserable. True happiness consists in decreasing the difference between our desires and our powers, in establishing a perfect equilibrium between the power and the will. Then only, when all its forces are employed, will the soul be at rest and man will find himself in his true position. In this condition, nature, who does everything for the best, has placed him from the first. To begin with, she gives him only such desires as are necessary for self-preservation and such powers as are sufficient for their satisfaction.” source