Self-Deception as the Handmaiden of Evil. http://www.laurencethomas.com/ There is no human capacity that contributes more to evil in this world than the capacity for self-deception, which is the wherewithal to hold as true that which one knows as (s=t?) some very significant level simply cannot be true.
LT is critical on Kant, about Kants “You shall never tell a lie” Kant was wrong, sometimes telling the truth is even a crime.
When in WOII German soldiers asked my grandmother if my future father was in the house she lied. If she had not lied, my father and other people would been killed for sure. And my grandmother would have been also in part guilty on their deaths (Kant would say she was not).