Seneca · On the proper time to slip the cable
Letters 70.2
We have sailed past life, Lucilius, as if we were on a voyage, and just as when at sea, to quote from our poet Vergil,
Lands and towns are left astern,
even so, on this journey where time flies with the greatest speed, we put below the horizon first our boyhood and then our youth, and then the space which lies between young manhood and middle age and borders on both, and next, the best years of old age itself. Last of all, we begin to sight the general bourne of the race of man.
Seneca, Letters to Lucilius 70.2, translated by Richard Mott Gummere