De Officiis [On Duties; On Moral Duty; The Offices], Book 1, ch. 15 (1.15) / sec. 47 (44 BC) [tr. Peabody (1883)] - Cicero, Marcus Tullius | WIST Quotations
For there is no more essential duty than that of returning kindness received. [Nullum enim officium referenda gratia magis necessarium est.] (Source (Latin)). Alternate translations: For of all the virtues, there is none we are more necessarily obliged to, than gratitude. [tr. Cockman (1699)] For there is no duty of…
