Commentary

Letter I is Seneca’s opening argument: time is the only resource you cannot recover. He opens by urging Lucilius to guard it ferociously — from others who steal it, and from himself when he fritters it away. Treating each day as a whole life is not optimism; it is accounting. A life well-lived is not measured in years but in days that were fully inhabited. This reframe makes the Monday morning meeting and the Tuesday conversation both equally unrepeatable — and equally worth showing up for.