Socrates Quotes
"Way of the Peaceful Warrior: A Book that Changes Lives". Book by Dan Millman, p. 162, 2006.
Socrates, Gordon Jacobs (2017). “Socrates: 100 Quotes on Life, Free Will, and Virtue”, Createspace Independent Publishing Platform
He who is not contented with what he has, would not be contented with what he would like to have.
Socrates, Plato, Aristotle (1967). “Wit and Wisdom of Socrates, Plato, Aristotle: Being a Treasury of Thousands of Glorious, Inspiring and Imperishable Thoughts, Views and Observations of the Three Great Greek Philosophers, Classified Under about Four Hundred Subjects for Comparative Study”
In Plato 'Apology' 38a