"I was visited by Timothy Leary when he was living in Switzerland many years ago. He was a very intelligent man, and quite charming. I enjoyed our conversations very much. However, he also had a need for too much attention. He enjoyed being provocative, and that shifted the focus from what should have been the essential issue. It is unfortunate, but for many years these drugs became taboo. Hopefully, these same problems from the Sixties will not be repeated."