For my insights, knowledge and experience I thank the many organizations and colleagues I have had the pleasure to work with and also inspiring authors, such as Simon Sinek, Frederic Laloux, Steven Covey, Ben Tiggelaar, Daniel Shapiro, Erica Ariel Fox, Verne Harnish, Mihaly Csikszentmihalyi, Marc Lammers, Bertold Ulsamer, Herman Wijffels and many others.