Meditation 10.16-18

16. Don't any more discuss at large what the good man is like, but be good.

17. Let your imagination dwell continually upon the whole of Time and the whole of Substance, and realize that their several parts are, by comparison with Substance, a fig-seed; by comparison with Time, the turn of a gimlet.

18. Dwell upon everything that exists and reflect that it is already in process of dissolution and coming into being by change and a kind of decay or dispersion, or in what way it is born to die, in a manner of speaking.