[17] For even one of these evils here mentioned by itself, when it opposes a man with violence, is sufficient to overthrow and to crush even one who is very proud and haughty; but when all these evils, to wit, the evils of the body, and the evils of the soul, and external misfortunes, all come together as if in one regular battalion, moving by previous arrangement at the same time, so as to attack him in one body, what resolution is there which they will not overpower? For when the guards are slain, it follows of necessity that he who relies on his guards must fall.