Everyone has the right to doubt everything as often as he pleases and the duty to do it at least once. No way of looking at things is too sacred to be reconsidered. No way of doing things is beyond improvement.
Edward de BonoThe system will always be defended by those countless people who have enough intellect to defend but not quite enough to innovate.
Edward de BonoCreativity involves breaking out of established patterns in order to look at things in a different way.
Edward de BonoA person who knows all the answers, has an opinion on everything, has a certainty backed up by rational argument, has very little possibility of further progress. Such a person is unlikely to walk away from a discussion with anything more than a reaffirmation of how right he or she has been all along.
Edward de Bono