AValor has its limits like the other virtues, and these limits once transgressed, we find ourselves on the path of vice; so that we may pass through valor to temerity, obstinacy, and madness, unless we know its limits well—and they are truly hard to discern near the borderlines. From this consideration is derived the custom, which we have in wars, of punishing even with death those who obstinately defend a place which by the rules of war cannot be held.
