So if among excellent actions political and military actions are distinguished by nobility and greatness, and these are unleisurely and aim at an end and are not desirable for their own sake, but the activity of intellect, which is contemplative, seems both to be superior in worth and to aim at no end beyond itself, and to have its pleasure proper to itself (and this augments the activity), and the self sufficiency, leisureliness, unweariedness (so far as this is possible for man), and all the other attributes ascribed to the blessed man are evidently those connected with this activity, it follows that this will be the complete happiness of man, if it be allowed a complete term of life (for none of the attributes of happiness is incomplete).