Nothing so cements and holds together all the parts of a society as faith or credit, which can never be kept up unless men are under some force or necessity of honestly paying what they owe to one another.
Marcus Tullius CiceroNo one has the right to be sorry for himself for a misfortune that strikes everyone.
Marcus Tullius CiceroWe can more easily avenge an injury than requite a kindness; on this account, because there is less difficulty in getting the better of the wicked than in making one's self equal with the good.
Marcus Tullius Cicero