Chaim Weizmann peace and a renewal of its youth, creating here the springs of a new spiritual and material life. [...] I speak of both science for its own sake and science as a means to an end." His efforts led in 1934 to the creation of the Daniel Sieff Research Institute (later renamed the Weizmann Institute of Science), which was financially supported by an endowment by Israel Sieff in memory of his late son. Weizmann actively conducted research in the laboratories of this institute, primarily in the field of organic chemistry. He offered the post of director of the institute to
Faisal I of Iraq following year. On 4 January 1919, Emir Faisal and Dr. Chaim Weizmann, President of the Zionist Organization, signed the Faisal–Weizmann Agreement for Arab-Jewish Cooperation, in which Faisal conditionally accepted the Balfour Declaration, a personal declaration by British politician, Lord Balfour, promising British support to the development of a Jewish homeland in Palestine. Once Arab states were granted autonomy from the European powers, years after the Faisal-Weizmann Agreement, and these new Arab nations were recognized by the Europeans and the U.N., Weizmann argued that since the fulfillment was kept eventually, the agreement for a Jewish homeland in Palestine still held. In