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Zelfverzekerde stommeriken en fanatici

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The whole problem with the world is that fools and fanatics are always so certain of themselves, but wiser people so full of doubts.

Bertrand Russell

Laatst aangepast op dinsdag, 15 maart 2011 20:52  

The most serious mistakes are not being made as a result of wrong answers. The true dangerous thing is asking the wrong question.

Peter Drucker

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