“[Wim] Pijbes left the position of general director of the Rijksmuseum in Amsterdam over the summer to lead the Voorlinden, a private contemporary art museum in Wassenaar that was founded by the Dutch art collector and businessman Joop van Caldenborgh. ‘We both had the feeling that it was better for both of us and for the museum to stop and to quit,’ Mr. Pijbes said in a telephone interview.”