"By and large, I seem to have made more mistakes than any others of whom I know, but have learned thereby to make ever swifter acknowledgment of the errors and thereafter immediately set about to deal more effectively with the truths disclosed by the acknowledgment of erroneous assumptions."

"The one common experience of all humanity is the challenge of problems."

"Mistakes are great, the more I make the smarter I get."

"Ignorance and greed are part of the evolutionary process, which is just to say that mistakes are part of learning. There is nothing bad about behaviors or perceptions that do not work; they simply have to be given up and replaced by behaviors or perceptions that do work."