WIST

Virtue extends our days: he lives two lives who relives his past with pleasure.

[Ampliat aetatis spatium sibi vir bonus. Hoc est
Vivere bis vita posse priore frui.]

Martial (AD c.39-c.103) Spanish Roman poet, satirist, epigrammatist [Marcus Valerius Martialis]
Epigrams [Epigrammata], Book 10, epigram 23

Alt trans.:
• "The good man prolongs his life; to be able to enjoy one's past life is to live twice." [Bartlett's Familiar Quotations, 10th ed. (1919)]
• "For he lives twice who can at once employ / The present well, and e'en the past enjoy." [Pope, Imitation of Martial]
• "A good man lengthens his term of existence; to be able to enjoy our past life is to live twice." [tr. Bohn (1871)]
• "The good man broadens for himself the span of his years: to be able to enjoy the life you have spent, is to live it twice." [tr. Nisbet (2015)]
• "A good man widens for himself his age's span; he lives twice who can find delight in life bygone." [tr. Ker (1919)]