Great quote by Senneca

“Flee luxury, flee enfeebling good fortune, from which men’s minds grow sodden, and if nothing intervenes to remind them of the common lot, they sink, as it were, into the stupor of unending drunkenness. The man who has always had glazed windows to shield him from a drought, whose feet have been kept warm by hot applications renewed from time to time, whose dining halls have been tempered by hot air passing beneath the floor and circulating round the walls — this man will run great risk if he is brushed by a gentle breeze…The staunchest member of the body is the one that is kept in constant use…So the bodies of sailors are hardy from buffeting the sea, the hands of farmers are callous, the soldier’s muscles have the strength to hurl weapons, and the legs of a runner are nimble. In each, his staunchest member is the one that he has exercised.” -Seneca