A ruler should be slow to punish and swift to reward.
Men do not value a good deed unless it brings a reward.
In your judgment virtue requires no reward, and is to be sought for itself, unaccompanied by external benefits. [Lat., Judice te mercede caret, per seque petenda est Externis virtus incomitata bonis.]
Heaven rewards the pious; those who cherish the gods Themselves are cherished.