dec
06
2010
Angst verwijdt de pupil, doch vernauwt de blik
Frans Hiddema
Time is our most valuable asset, yet we tend to waste it, kill it, and spend it rather than invest it.
Jim Rohn
Social learning en leren met sociale mediaMarcel de Leeuwe, Wilfred RubensBij Bol.com | Managementboek