Moral Letters to Lucilius Section 49

Isto ergo modo et consolatio supervacua est, nam haec quoque ex utroque est, et adhortatio et suasio et ipsa argumentatio. Nam et haec ab habitu animi compositi validique proficiscitur. Sed quamvis ista ex optimo habitu animi veniant, optimus animi habitus ex his est; et facit illa et ex illis ipse fit.

» Ainsi donc la consolation aussi serait superflue, car elle a la même origine ; et aussi l’exhortation, les conseils, les raisonnements même, toutes choses qui proviennent de l’état d’une âme bien réglée et forte. Mais quoiqu’elles naissent d’une excellente situation de l’âme, cette situation est produite par elles, tout comme elle les produit.

On that basis, therefore, even consolation would be superfluous, since this also is a combination of the other two, as likewise are exhortation, persuasion, and even proof itself. For proof also originates from a well-ordered and firm mental attitude. But, although these things result from a sound state of mind, yet the sound state of mind also results from them; it is both creative of them and resultant from them.