Other interests


Martial arts

Black Belt in Korean martial art Tang Soo Do; Moo Duk Kwan (Federation Number: D-10-2107; Black Belt Number: 11-SE388; Instructor: Grand Master Jino Kim, Dan 8), Dan 1: 3 September 2011; Dan 2: 8 March 2014. Photo (5 March 2016). I train at J. Kim Martial Arts.



I take a weekly yoga class at the North Unitarian Universalist Congregation church I attend.


Cycling (especially in The Netherlands)

I even own a vouwfiets (folding bike)!


Music (especially jazz and progressive rock)

I have some professional musician friends, listed (alphabetically) below. Michiel Borstlap, Steve Hackett, and Patrick Moraz have written blurbs for my social psychology textbook with Roy Baumeister.

Han Bennink (percussion)

Michiel Borstlap (keyboardist)

Ernst Glerum (bass)

Steve Hackett (guitarist Genesis)

Patrick Moraz (keyboardist Yes, Moody Blues)


Traveling (especially in Europe)

I have good friends and colleagues in Belgium, France, Germany, Hungary, Italy, Luxembourg, The Netherlands, Poland, Poland, Romania, Spain, Switzerland, and the U.K.


Vegetarian cuisine (eating and cooking)

I have been a vegetarian since age 18.