Letter 63 — On Grief for Lost Friends (§15)

“Therefore let us continually think as much about our own mortality as about that of all those we love. In former days I ought to have said: “My friend Serenus is younger than I; but what does that matter? He would naturally die after me, but he may precede me.” It was just because I did not do this that I was unprepared when Fortune dealt me the sudden blow. Now is the time for you to reflect, not only that all things are mortal, but also that their mortality is subject to no fixed law. Whatever can happen at any time can happen to-day.”