Science is a cemetary of dead ideas.
The devil is an angel too.
Chemistry ought to be not for chemists alone.
My work...is to shatter the faith of men here, there, and everywhere, faith in affirmation, faith in negation, and faith in abstention from faith, and this for the sake of faith in faith itself.
Human beliefs, like all other natural growths, elude the barrier of systems.
Faith which does not doubt is dead faith.