This theory of philosophy teaches that knowledge is made of innate ideas and strongly connected with math & logic
He believed that one should care for their soul, seek knowledge because it is necessary to attain virtue which in turn creates happiness, that evil acts are committed by ignorance, and that committing an injustice is far worse than suffering an injustice
This historical philosopher thinks eudaimonia, which means human flourishing or happiness, should be the main goal of life and to achieve eudaimonia one must be virtuous, or ethical.
This philosopher argues that justice is a kind of harmony between the three different parts of the just society which, correspond to the individual’s parts of the soul. When a person achieves harmony between these parts this individual thinks they will naturally act justly in the conventional sense.