While in Britain, Kenyatta made political alliances with individuals committed to Marxism and to radical Pan-Africanism, the idea that African countries should politically unify; some commentators have posthumously characterised Kenyatta as a Pan-Africanist. Maloba observed that during the colonial period Kenyatta had embraced "radical Pan African activism" which differed sharply from the "deliberate conservative positions, especially on the question of African liberation" that he espoused while Kenya's leader. As leader of Kenya, Kenyatta published two collected volumes of his speeches: "Harambee" and "Suffering Without Bitterness". The material included in these publications was carefully selected so as to avoid mention of the radicalism he exhibited while in Britain during the 1930s.