Justice has no independent existence; it results from mutual contracts, and establishes itself wherever there is a mutual engagement to guard against doing or sustaining mutual injury.
EpicurusThe wise man who has become accustomed to necessities knows better how to share with others than how to take from them, so great a treasure of self-sufficiency has he found.
EpicurusIf you wish to make Pythocles rich, do not add to his store of money, but subtract from his desires.
Epicurus