In order to find all the right answers, the professor does need to travel from time to time. For instance, the question ‘what is the difference between a tv set and a mindset’ took the professor to various countries like Italy (for inspiration he took a dive into the fountain of ‘la vita dolce’) and North-America (Hollywood, where life is like the big screen and minds change easily). For each question he needs more than his elaborate private library for, he carefully chooses the right countries that may or may not hold the anwers. Needless to say, there is no going home without the answer!