...happiness is an activity and a complete utilization of virtue, not conditionally but absolutely.

It is of the nature of desire not to be satisfied, and most men live only for the gratification of it.

Happiness may be defined as good fortune joined to virtue, or a independence, or as a life that is both agreeable and secure.

Whatsoever that be within us that feels, thinks, desires, and animates, is something celestial, divine, and, consequently, imperishable.

So, if we must give a general formula applicable to all kinds of soul, we must describe it as the first actuality [entelechy] of anatural organized body.

It is not always the same thing to be a good man and a good citizen.

Consider pleasures as they depart, not as they come.