Letters 35.3

But yet I wish to rejoice in the accomplished fact. We feel a joy over those whom we love, even when separated from them, but such a joy is light and fleeting; the sight of a man, and his presence, and communion with him, afford something of living pleasure; this is true, at any rate, if one not only sees the man one desires, but the sort of man one desires. Give yourself to me, therefore, as a gift of great price, and, that you may strive the more, reflect that you yourself are mortal, and that I am old.

Seneca, Letters to Lucilius 35.3, translated by Richard Mott Gummere