Letters 94.35

“Precepts,” it is said “are numberless.” Wrong again! For they are not numberless so far as concerns important and essential things. Of course there are slight distinctions, due to the time, or the place, or the person; but even in these cases, precepts are given which have a general application.

Seneca, Letters to Lucilius 94.35, translated by Richard Mott Gummere