“alleen iets dat moeite kost – is ook de moeite waard”

– Anne Kaldewaij (Vrije Universiteit Amsterdam)

“a project is complete when it starts working for you, rather than you working for it”

– Scott Allen

“excellence is doing ordinary things, extraordinarily well”

– John W. Gardner

“…the only way to reconcile risk and success is the expertise.

– ESA Director General Jean-Jacques Dordain, in a speech immediately after the successful landing of the Rosetta spacecraft's lander Philae on the surface of Comet 67P/Churyumov-Gerasimenko.