Even if this degeneration do not take place, and the foundation be not withered on which antiquarian history can alone take root with profit to life: yet there are dangers enough, if it become too powerful and invade the territories of the other methods. It only understands how to preserve life, not to create it; and thus always undervalues the present growth, having, unlike monumental history, no certain instinct for it. Thus it hinders the mighty impulse to a new deed and paralyses the doer, who must always, as doer, be grazing some piety or other. The fact that has grown old carries with it a demand for its own immortality. For when one considers the life-history of such an ancient fact, the amount of reverence paid to it for generations--whether it be a custom, a religious creed, or a political principle,--it seems presumptuous, even impious, to replace it by a new fact, and the ancient congregation of pieties by a new piety. Here we see clearly how necessary a third way of looking at the past is to man, beside the other two. This is the "critical" way; which is also in the service of life. Man must have the strength to break up the past; and apply it too, in order to live. He must bring the past to the bar of judgment, interrogate it remorselessly, and finally condemn it. Every past is worth condemning: this is the rule in mortal affairs, which always contain a large measure of human power and human weakness. It is not justice that sits in judgment here; nor mercy that proclaims the verdict; but only life, the dim, driving force that insatiably desires--itself. Its sentence is always unmerciful, always unjust, as it never flows from a pure fountain of knowledge: though it would generally turn out the same, if Justice herself delivered it. "For everything that is born is _worthy_ of being destroyed: better were it then that nothing should be born." It requires great strength to be able to live and forget how far life and injustice are one. Luther himself once said that the world only arose by an oversight of God; if he had ever dreamed of heavy ordnance, he would never have created it. The same life that needs forgetfulness, needs sometimes its destruction; for should the injustice of something ever become obvious--a monopoly, a caste, a dynasty for example--the thing deserves to fall. Its past is critically examined, the knife put to its roots, and all the "pieties" are grimly trodden under foot. The process is always dangerous, even for life; and the men or the times that serve life in this way, by judging and annihilating the past, are always dangerous to themselves and others. For as we are merely the resultant of previous generations, we are also the resultant of their errors, passions, and crimes: it is impossible to shake off this chain. Though we condemn the errors and think we have escaped them, we cannot escape the fact that we spring from them. At best, it comes to