"One does not love the past in its living truth if he insists on preserving its hardened and mummified forms. The past is an appeal; it is an appeal toward the future which sometimes can save it only by destroying it. Even though this destruction may be a sacrifice, it would be a lie to deny it: since man wants there to be being, he can not renounce any form of being without regret. But a genuine ethics does not teach us either to sacrifice it or deny it: we must assume it."