What 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.
PlatoSo where it is a general rule that it is wrong to gratify lovers, this can be attributed to the defects of those who make that rule: the government's lust for rule and the subjects' cowardice.
Plato