Seneca · On old age and death
Letters 26.4
“But,” you say, “it is the greatest possible disadvantage to be worn out and to die off, or rather, if I may speak literally, to melt away! For we are not suddenly smitten and laid low; we are worn away, and every day reduces our powers to a certain extent.”
But is there any better end to it all than to glide off to one’s proper haven, when nature slips the cable? Not that there is anything painful in a shock and a sudden departure from existence; it is merely because this other way of departure is easy,—a gradual withdrawal. I, at any rate, as if the test were at hand and the day were come which is to pronounce its decision concerning all the years of my life, watch over myself and commune thus with myself:
Seneca, Letters to Lucilius 26.4, translated by Richard Mott Gummere