Letter 15 — On Brawn and Brains (§1)

“The old Romans had a custom which survived even into my lifetime. They would add to the opening words of a letter: “If you are well, it is well; I also am well.” Persons like ourselves would do well to say: “If you are studying philosophy, it is well.” For this is just what “being well” means. Without philosophy the mind is sickly, and the body, too, though it may be very powerful, is strong only as that of a madman or a lunatic is strong.”