ISBN-13: 9781507675335 / Angielski / Miękka / 2015 / 74 str.
Of the papers in this little volume two have appeared in print before: "Science and Socialism" in the International Socialist Review for September, 1900, and "Marxism and Ethics" in Wilshire's Magazine for November, 1905. My thanks are due to the publishers of those periodicals for their kind permission to re-print those articles here. The other papers appear here for the first time.