sept
23
2016
Happiness consists in activity: such is the constitution of our nature; it is a running stream, and not a stagnant pool.
John M. Good
L'avenir ne se prévoit pas, il se prépare.
Maurice Blondel
Het nieuwe succesEen toekomst vol kracht, wijsheid en evenwichtArianna HuffingtonBij Bol.com | Managementboek