It is impossible for a man to become assimilated with people whose blood is different from his own.
Source, in full
V. Jabotinsky, "A Letter on Autonomy", Evreiskaya zhizn, no. 6, June 1904. As translated in "Israel Among the Nations : Selection of Zionist Texts" (ed. Zvi Zohar; Jerusalem : World Zionist Organization, Organization Department, Research Section, 1966). Reprinted in L. Brenner, 51 Documents, Barricade Books, 2002, pp. 7–20.