"The most unpardonable sin in society is independence of thought. That this should be so terribly apparent in a country whose symbol is democracy, is very significant of the tremendous power of the majority. [...] Evidently we have not advanced very far from the condition that confronted Wendell Phillips. Today, as then, public opinion is the omnipresent tyrant."
January 1, 1970
https://en.wikiquote.org/wiki/Public_opinion