
The most serious mistakes are not being made as a result of wrong answers. The true dangerous thing is asking the wrong question.
Peter F. Drucker
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You have to stay in shape. My grandmother, she started walking five miles a day when she was 60. She's 97 today and we don't know where the hell she is. Ellen DeGeners |
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De kunst van het heldere denken Bij Managementboek.nl | Bol.com |