Meditations by Marcus Aurelius Book 8 Page 8

the trouble of a courtly life, either in public before others, or in private by thyself.

IX. Repentance is an inward and self-reprehension for the neglect or omission of somewhat that was profitable. Now whatsoever is good, is also profitable, and it is the part of an honest virtuous man to set by it, and to make reckoning of it accordingly. But never did any honest virtuous man repent of the neglect or omission of any carnal pleasure: no carnal pleasure then is either good or profitable.

X. This, what is it in itself, and by itself, according to its proper constitution? What is the substance of it? What is the matter, or proper use? What is the form or efficient cause? What is it for in this world, and how long will it abide? Thus must thou examine all things, that present themselves unto thee.