None of these will force you to die, but all will teach you how to die. None of them will exhaust your years, but each will contribute his years to yours. With none of these will conversation be dangerous, or his friendship fatal, or attendance on him expensive. From them you can take whatever you wish: it will not be their fault if you do not take your fill from them. What happiness, what a fine old age awaits the man who has made himself a client of these!