“History has taught us that the nature of man is evil, sublimely so. Good is not perfectible, but evil is. Why should you not use your great mind in service of what is perfectible? I ask you, my friend, to join me of your own accord in my research. If you do so, you will save yourself great anguish, and you will save me considerable trouble. Together we will advance the historian's work beyond anything the world has ever seen. There is no purity like the purity of the sufferings of history. You will have what every historian wants: history will be reality to you. We will wash our minds clean with blood.”