Worthy of honor is he who does no injustice, and more than twofold honor, if he not only does no injustice himself, but hinders others from doing any.
PlatoWhat the expression is intended to mean, I think, is that there is a better and a worse element in the character of each individual, and that when the naturally better element controls the worse then the man is said to be "master of himself", as a term of praise. But when - as a result of bad upbringing or bad company one s better element is overpowered by the numerical superiority of one s worse impulses, then one is criticized for not being master of oneself and for lack of self control.
Plato...in every man there is an eye of the soul, which...is more precious far than ten thousand bodily eyes, for by it alone is truth seen.
Plato