text: Teach me, not whether Bravery be a living thing, but prove that no living thing is happy without bravery, that is, unless it has grown strong to oppose hazards and has overcome all the strokes of chance by rehearsing and anticipating their attack. And what is Bravery? It is the impregnable fortress for our mortal weakness; when a man has surrounded himself therewith, he can hold out free from anxiety during life's siege; for he is using his own strength and his own weapons. At this point I would quote you a saying of our philosopher Posidonius: "There are never any occasions when you need think yourself safe because you wield the weapons of Fortune; fight with your own! Fortune does not furnish arms against herself; hence men equipped against their foes are unarmed against Fortune herself."