“The pleasure of criticizing takes away from us the pleasure of being moved by some very fine things.”

“But instead of spending our lives running towards our dreams, we are often running away from a fear of failure or a fear of criticism.”

“The ugliest government is the one which is spreading fear to its own people! The finest government is the one which encourages its own people to criticize the government harshly.”

“Should we not be concerned as to whether this fear of error is not just the error itself?”

“An error does not become truth by reason of multiplied propagation, nor does the truth become error because nobody will see it. 1924-1926)”

“The scientific spirit is of more value than its products, and irrationally held truths may be more harmful than reasoned errors.”