SERENUS:fn1 When I looked into myself, Seneca, some of my vices appeared clearly on the surface, so that I could lay my hand on them; some were more hidden away in the depths; some were not there all the time but return at intervals. These last I would say are the most troublesome: they are like prowling enemies who pounce on you when occasion offers, and allow you neither to be at the ready as in war nor at ease as in peace.