 He completed his doctorate on "The Voluntarism of Eduard von Hartmann, Based on Schopenhauer," but never took his rabbinical exams at the seminary.Meanwhile, he attended, with his father, a protest demonstration in front of the local British Consulate following the 1929 Arab riots in Palestine.The next year he read a poem by Uri Zvi Greenberg, "I'll Tell It to a Child," about a messiah who cannot redeem his people because they are not ready to accept redemption.