… when a soundly-balanced mind knows that a day differs not a whit from eternity — then the soul looks forth from lofty heights and laughs heartily to itself… Therefore, my dear Lucilius, begin at once to live, and count each separate day as a separate life.
The maxim caps Seneca’s argument that anxious planning steals the present: only someone unhappy with today frets about tomorrow.
✓Public domain
The Latin is ancient and Gummere’s English translation (Loeb, 1917–25) is out of U.S. copyright — both are public domain.
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