 | Kees Overbeeke, my co-promotor and mentor in Delft. Helping to move the project forward, keeping my feet on the ground, exploring life universe and everything, always able to put things in context so that they made sense or sense again. Kees, you went too soon. |
 | I have known John M. Flach since my work in Delft, which had an overlap with John’s research at the time. Although he was not part of my PhD committee, Kees Overbeeke was kind enough to ensure he was present, and that he was allowed to ask a question ‘from the audience’. John is a kind and inspiring person. He has a clear and sharp mind and I always find myself learning something, no matter what subject we discuss. He manages to expand, if not explode my mind. Thank you, John. |
 | I read the Blind Watchmaker after reading a reference to it in the Salmon Of Doubt from Douglas Adams, and I have been a fan ever since. It is one of the books on my shelf that looks like it has never been read, which is true actually. The copy I read I lend to an uncle and instead of giving me back my copy – because it acquired additional beer stains – he bought me a new copy. |
 | Gerda Smets, my promotor. It was a challenge, a pleasure, and honour working with you. Gerda’s thinking is way too fast and way too lateral, making discussions on design/product proposals a creative rollercoaster. At the time, working with Gerda was simply inspiring. Now I realise she was a decade ahead of her time. Thank you. |
 | I came across Wes’ youtube channel looking for background information on William James, and have been listening to his lectures ever since, many of which multiple times. Dr. Wes Cecil writes about himself: “I am a student of language and literature. I have been reading, writing, and studying for most of my life. I received a B.A. in English from Fresno State and then went on to receive an M.A. and Ph.D. in English at Indiana University. I am interested in literature, philosophy, history and gardening. For the last 16 years, I have been a teacher at Peninsula College and, when not working, reading, or writing, spend much of my time in my garden.” I highly recommend to listen to Wes youtube channel |
 | OK, I most probably am somewhat biased when it comes to Enno Voorhorst. Yes, he is my nephew. But also, a kind and generous person, very talented woodworker and extremely skilled guitarist. Just watch and listen to this. Just awesomely incredible! |
 | Feja Voorhorst, my late father. Your departure came much too soon, and painfully unexpected. I know I must enjoy the memories I have. Like biking in Amsterdam, walking in the winter sun to Morcote. Ice-skating through the Botshol. Building a dam in a river in France. Exploring an exhibition of Van Gogh, looking for paintings of trees representing female body shapes. Stories about the children, your last painting, etc. Just to get your point of view, to look through your eyes, always a fresh perspective. You may not always had the answer. You never needed to have the answer. Simply exchanging ideas, understand the problem, together looking for a solution, which we always found, or a step forward. I hope I make you proud. |
 | Richard Feynman was one of those people who could explain a problem in it’s essence, no matter how complex the problem or the background of the person who he explained it to. He embodied the Einstein quote: “If you can‘t explain it simply, you don‘t understand it well enough.” I can highly recommend his autobiography and especially “the meaning of it all“ |
 | Tom simply is the best product designer I have had the privilege to work with. Always surprising me with innovative ideas, neatly wrapped in matching flair of elegance of use. Great partner to bounce of ideas, collaboratively shaping a vision on the world good be, and with the creative skills and eye for detail to realise a near perfect ‘version-one’. His foam board prototypes of photo cameras are still unrivalled. |
 | Ans Koenderink – Van Doorn. Kind, generous, good sense of humour, a great scientist. I very much liked her pragmatic solution to her washing-machine/computer dilemma, her detailed feedback on my draft dissertation, while enjoying tea in her living room. Most of all, her energy, and lust for life |