Removing the faults in a stage-coach may produce a perfect stage-coach, but it is unlikely to produce the first motor car.
Edward de BonoIntelligence is something we are born with. Thinking is a skill that must be learned.
Edward de BonoLateral thinking is concerned not with playing with the existing pieces but with seeking to change those very pieces. It is concerned with the perception part of thinking. This is where we organise the external world into the pieces we can then 'process'.
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