Virtue, love, duty
"the men we live with are not perfect and ideally wise, but men who do very well, if there be found in them but the semblance of virtue. I therefore think that this is to be taken for granted, that no one should be entirely neglected who shows any trace of virtue; but the more a man is endowed with these finer virtues - temperance, self-control, and that very justice about which so much has already been said - the more he deserves to be favoured"
- Cicero, De Officiis, I. 46