And all knowledge, when separated from justice and virtue, is seen to be cunning and not wisdom; wherefore make this your first and last and constant and all-absorbing aim, to exceed, if possible, not only us but all your ancestors in virtue; and know that to excel you in virtue only brings us shame, but that to be excelled by you is a source of happiness to us.
PlatoTo go to the world below, having a soul which is like a vessel full of injustice, is the last and worst of all the evils.
PlatoThe music masters familiarize children's minds with rhythms and melodies, thus making them more civilized, more balanced, better adjusted in themselves, and more capable in whatever they say or do, for rhythm and harmony are essential to the whole of life.
PlatoFor though a man should be a complete unbeliever in the being of gods; if he also has a native uprightness of temper, such persons will detest evil in men; their repugnance to wrong disinclines them to commit wrongful acts; they shun the unrighteous and are drawn to the upright.
PlatoAnd is it not true that in like manner a leader of the people who, getting control of a docile mob, does not withhold his hand from the shedding of tribal blood, but by the customary unjust accusations brings a citizen into court and assassinates him, blotting out a human life, and with unhallowed tongue and lips that have tasted kindred blood, banishes and slays and hints at the abolition of debts and the partition of lands.
Plato