"When one is firmly convinced of his own rightness and goodness, he can without qualm perpetrate the most appalling evil."
Credit:
Source:
Conjectures of a Guilty Bystander
Source URL:
https://books.google.com/books?id=vqJuu168cxYC&pg=PA168&lpg=PA168&dq=%22When+one+is+firmly+convinced+of+his+own+rightness+and+goodness,+he+can+without+qualm+perpetrate+the+most+appalling+evil.%22&source=bl&ots=yGfYn8wg6-&sig=ACfU3U00tfDsGXPKdmoRyBiKF6AgIq