While in Berlin, he joined a circle of Zionist intellectuals. In 1897, he moved to Switzerland to complete his studies at the University of Fribourg. In 1898, he attended the Second Zionist Congress in Basel. That year he became engaged to Sophia Getzowa. Getzowa and Weizmann were together for four years before Weizmann, who became romantically involved with Vera Khatzman in 1900, confessed to Getzowa that he was seeing another woman. He did not tell the family he was leaving Getzowa until 1903. His fellow students held a mock trial and ruled that Weitzman should uphold his commitment and marry Getzowa, even if he later divorced her. Weizmann ignored their advice.