Here is some text from use and abuse of history
"For when its past is analyzed critically, then we grasp with a knife at its roots and go cruelly beyond all reverence. It is always a dangerous process, that is, a dangerous process for life itself. And people or ages serving life in this way, by judging and destroying a past, are always dangerous and in danger. For since we are now the products of earlier generations, we are also the products of their aberrations, passions, mistakes, and even crimes. It is impossible to loose oneself from this chain entirely. When we condemn that confusion and consider ourselves released from it, then we have not overcome the fact that we are derived from it. In the best case, we bring the matter to a conflict between our inherited customary nature and our knowledge, in fact, even to a war between a new strict discipline and how we have been brought up and what we have inherited from time immemorial. We cultivate a new habit, a new instinct, a second nature, so that the first nature atrophies. It is an attempt to give oneself, as it were, a past a posteriori [after the fact], out of which we may be descended in opposition to the one from which we are descended. It is always a dangerous attempt, because it is so difficult to find a borderline to the denial of the past and because the second nature usually is weaker than the first. Too often what remains is a case of someone who understands the good without doing it, because we also understand what is better without being able to do it. But here and there victory is nevertheless achieved, and for the combatants, for those who make use of critical history for their own living, there is even a remarkable consolation, namely, they know that that first nature was at one time or another once a second nature and that every victorious second nature becomes a first nature."