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 Bono)

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 Bono

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beyond doubt duty everyone everything improvement least looking once right way things

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