Gratitude appears in strikingly similar forms across traditions that never influenced one another. In Jewish practice, the very first words a person is meant to say each day are Modeh Ani ("I give thanks"), recited immediately upon waking, before washing or speaking of anything else — thanking God simply for the return of consciousness, before any of the day's events have happened. The Hebrew word for "Jew," Yehudi, is itself built on the root for thanks (hodu). In Roman Stoic thought, Cicero wrote in his Oration for Cnaeus Plancius that "gratitude is not only the greatest of virtues, but the parent of all others" — treating it as the root from which other virtues grow, not merely one item on a list. Seneca develops the same idea at length in De Beneficiis (On Benefits), arguing that a person incapable of gratitude cannot be satisfied or fulfilled by anything given to them, since the failure is in their own capacity to receive, not in what they're given. The Pali Buddhist canon makes a parallel claim from a different angle: the Anguttara Nikaya (2:118) states that "these two people are hard to find in the world: the one who is first to do a kindness, and the one who is grateful and thankful for a kindness done" — pairing gratitude (kataññu) with active repayment (katavedi) as two halves of the same rare virtue. What unites all three is the same structural move: gratitude is framed not as a passive emotional response to good fortune, but as a trained perceptual habit — noticing what has been given — that has to be practiced daily to counteract the mind's default pull toward complaint and comparison.
Source: Cicero, Pro Plancio; Seneca, De Beneficiis; Anguttara Nikaya 2:118