For contemplation is both the highest form of activity (since the intellect is the highest thing in us, and the objects that it apprehends are the highest things that can be known), and also it is the most continuous, because we are more capable of continuous contemplation than we are of any practical activity.
AristotleExcellence or virtue in a man will be the disposition which renders him a good man and also which will cause him to perform his function well.
Aristotle