"There is no denying that Hitler and Stalin are alive today... they are waiting for us to forget, because this is what makes possible the resurrection of these two monsters"

This quote by Simon Wiesenthal is a warning to us to always remember the atrocities committed by Hitler and Stalin. He is suggesting that if we forget, we are enabling the possibility of these two beasts to be reanimated. He is advising us that the consequences of their actions are still alive today, and that we need to remember them in order to prevent them from taking place once again. Wiesenthal is warning us that if we forget, we are allowing the possibility of these 2 monsters to be resurrected. He is advising us that the consequences of their actions are still alive today, which we should remember them in order to avoid them from occurring again. He is advising us to keep in mind the past in order to guarantee a much better future. He is advising us that we need to never forget the scaries of the past in order to prevent them from taking place again.