Happiness, whether consisting in pleasure or virtue, or both, is more often found with those who are highly cultivated in their minds and in their character, and have only a moderate share of external goods, than among those who possess external goods to a useless extent but are deficient in higher qualities.
AristotleThat in the soul which is called the mind is, before it thinks, not actually any real thing.
AristotleThe soul is characterized by these capacities; self-nutrition, sensation, thinking, and movement.
Aristotle