jan
30
2012
To see what is right, and not to do it, is want of courage or of principle.
Confucius
In a time of rapid change, standing still is the most dangerous course of action.
Brian Tracy
Beïnvloeden van gedrag De nieuwe wetenschap om verandering te leidenJoseph Grenny, Kerry Patterson, David Maxfield, Ron McMillan, Al Switzler
Bij Managementboek