A land without a people for a people without a land throw upon the Jews the actual manual labor of regeneration and prevent them from exploiting the "fellahin", whose numbers and lower wages are moreover a considerable obstacle to the proposed immigration from Poland and other suffering centers". In 1914 Chaim Weizmann, later president of the World Zionist Congress and the first president of the state of Israel said: "In its initial stage Zionism was conceived by its pioneers as a movement wholly depending on mechanical factors: there is a country which happens to be called Palestine, a country without a people, and, on the other hand, there exists the Jewish
The Racah Institute of Physics before the opening of the Hebrew University, first steps towards physics research in Jerusalem were taken by Chaim Weizmann. Weizmann, the President of the Zionist Organisation, and the major figure in the planning and founding of the Hebrew University contacted Leonard Ornstein, the known physicist from Utrecht, the Netherlands, to prepare plans for physics research at the upcoming university. After the University was officially opened, he became the chairman of the physics group for several years, acting from his seat at Utrecht. In the year 1923, two years before its official opening, Albert Einstein gave a talk on Mount Scopus,