At the spectrum's ends

 

"A maxim for the twenty-first century might well be to start not by fighting evil in the name of good, but by attacking the certainties of people who claim always to know where good and evil are to be found. We should struggle not against the devil himself but what allows the devil to live — Manichaean thinking itself."

in Hope and Memory: Reflections on the Twentieth Century (2003), by Tzvetan Todorov (1939-2017), Bulgarian-French historian, philosopher, structuralist literary critic, sociologist, essayist and geologist.

Incidentally, I met the man when he came to my town for a lecture and to introduce this book which was just out. Fascinating person(ality) and thinking process (you could almost see the cogs spinning in his brain).