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Home Omdenken Weten wat je zegt volgens Claudius
Weten wat je zegt volgens Claudius

citaat quote

Say not always what you know, but always know what you say.

Claudius

 

Laatst aangepast op woensdag, 11 november 2015 07:58  

Concentration is the key to economic results. No other principles of effectiveness is violated as constantly today as the basic principle of concentration

Peter Drucker

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