In 1987, he published his book: Into the Holy of Holies: Psychoanalytic Insights into the Bible and Judaism. During that same year, he was invited to present an unpublished manuscript on quantum mechanics at an international conference in Temple University in Philadelphia. Consequently, he was later invited by Yakir Aharonov of Tel Aviv University, the doyen of physicists in Israel, to write a doctoral thesis on the subject. He was the chief editor of natural sciences in Encyclopaedia Hebraica. In 2008, he was a visiting professor at Joseph Fourier University.