"Few people are capable of expressing with equanimity opinions which differ from the prejudices of their social enviroment. Most people are incapable of forming such opinions."(Essay to Leo Baeck, 1953)"
"The ideals which have always shone before me and filled me with joy are goodness, beauty, and truth."
"I am enough of an artist to draw freely upon my imagination."
"Great spirits have always encountered opposition from mediocre minds. The mediocre mind is incapable of understanding the man who refuses to bow blindly to conventional prejudices and chooses instead to express his opinions courageously and honestly."
"Whoever is careless with the truth in small matters cannot be trusted with important matters"
"I would not think that philosophy and reason themselves will be man's guide in the foreseeable future; however, they will remain the most beautiful sanctuary they have always been for the select few."