Introduction: Race, class, gender and human unity, Maryanne Cline Horowitz. Part 1 Human nature: from equality to organicism, Frank E.Manuel; Darwin, Malthus and the theory of natural selection, Peter Vorzimmer; Kant, Schopenhauer and Nietzche on the morality of pity, David E.Cartwright; Jane Addams on human nature, Merle Curti. Part 2 Race and ethnicity - American questions on race: Dr Benjamin Rush and the Negro, Donald J.D'Elia; Aristotle, Plato and the Mason-Dixon line, Harvey Wish; the ideology of white supremacy, James W.Vanderzanden. Part 3 Race and ethnicity - Marx, Freud and the Jewish question: Marx and Jewish emancipation, Shlomo Avineri; in the interests of civilization - Marxist views of race and culture in the 19th century, Diane Paul; Sigmund Freud, his Jewishness and scientific method - the seen and unseen as evidence, Sigmund Diamond; Disraeli, Freud and Jewish conspiracy theories, L.J.Rather. Part 4 Sex differences of gender distinctions: Margaret Fuller and the abolition movement, Francis E.Kearns; early feminist themes in French utopian socialism - the St-Simonians and Fourier, Leslie F.Goldstein; sex and socialism - the opposition of the French Left to birth control in the 19th century, Angus McLaren; Victorian science and the genius of woman, Flavia Alaya. Part 5 From rank to class: Jeffersonian revisions of Locke - education, property rights and liberty, David M.Post; Hegel on property and poverty, Richard Teichgraeber; bourgeois and proletarians, Gerald A.Cohen; the economic penetration of political theory - some hypotheses, C.B.MacPherson.