
Confidence comes not from always being right but from not fearing to be wrong.
Peter T. McIntyre
mei
11
2012

Confidence comes not from always being right but from not fearing to be wrong.
Peter T. McIntyre
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If I had an hour to solve a problem I'd spend 55 minutes thinking about the problem and 5 minutes thinking about solutions. Albert Einstein |
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Effectief Tijdbeheer Bij Bol.com of Managementboek |