You will find a pleasure that cannot be destroyed, even in the possession of the most fragile things; you will possess them, they will not possess you, and you will realise that the man who loses everything, only enjoys what he knows how to resign. It is true you will not enjoy the illusions of imaginary pleasures, neither will you feel the sufferings which are their result.
 Jean-Jacques Rousseau, Emile, or On Education (1762). copy citation

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

Context

“learn to forsake all things at the command of virtue, to set yourself above the chances of life, to detach your heart before it is torn in pieces, to be brave in adversity so that you may never be wretched, to be steadfast in duty that you may never be guilty of a crime. Then you will be happy in spite of fortune, and good in spite of your passions. You will find a pleasure that cannot be destroyed, even in the possession of the most fragile things; you will possess them, they will not possess you, and you will realise that the man who loses everything, only enjoys what he knows how to resign. It is true you will not enjoy the illusions of imaginary pleasures, neither will you feel the sufferings which are their result. You will profit greatly by this exchange, for the sufferings are real and frequent, the pleasures are rare and empty. Victor over so many deceitful ideas, you will also vanquish the idea that attaches such an excessive value to life.” source