A Dissertation Concerning 
The Nature Of True Virtue

WHATEVER controversies and variety of opinions there are about the nature of virtue, yet all excepting some skeptics, who deny any real difference between virtue and vice, mean by it, something beautiful, or rather some kind of beauty, or excellency. It is not all beauty that is called virtue; for instance, not the beauty of a building, of a flower, or of the rainbow; but some beauty belonging to beings that have perception and will. It is not all beauty of mankind, that is called virtue; for instance, not the external beauty of the countenance, or shape, gracefulness of motion, or harmony of voice: but it is a beauty that has its original seat in the mind. But yet perhaps not every thing that may be called a beauty of mind, is properly called virtue. There is a beauty of understanding and speculation; there is something in the ideas and conceptions of great philosophers and statesmen, that may be called beautiful; which is a different thing from what is most commonly meant by virtue.
But virtue is the beauty of those qualities and acts of the mind, that are of a moral nature, i.e., such as are attended with desert or worthiness of praise,or blame. Things of this sort, it is generally agreed, so far as I know, do not belong merely to speculation; but to the disposition and will, or (to use a general word, I suppose commonly well understood) to the heart. Therefore, I suppose I shall not depart from the common opinion, when I say, that virtue is the beauty of the qualities and exercises of the heart, or those actions which proceed from them. So that when it is inquired, what is the nature of true virtue? this is the same as to inquire, what that is, which renders any habit, disposition, or exercise of the heart truly beautiful.