Himmelfarb, Gertrude. 1952. Lord Acton: A Study in Conscience and Politics. Chicago Press: University of Chicago Press. Reissued: Acton Institute 2015.

Review on Amazon:

Lord Acton is the author of the maxim, “Power tends to corrupt and absolute power corrupts absolutely.” In this intellectual biography, Gertrude Himmelfarb regards Acton as a man more of our age than of his own. He was a Liberal Catholic and a distinguished historian, and his vigorous denunciations of nationalism, racism, statism, and bigotry rank among the classics of political and social thought.

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