An Untitled Lecture on Plato's Euthyphron Leo Strauss Edited by David Bolotin St. John's College, Santa Fe Christopher Bruell Boston College Thomas L. Pangle University of Toronto Professor Strauss's lecture on Plato's Euthyphron was available to the edi tors in copies of two typescripts. The first typescript, labeled "Transcription not checked by author," has only a very few handwritten alterations in an unknown hand. The second, which was perhaps typed as a slightly revised copy of the first, was given by Professor Strauss's daughter Professor Jenny Strauss Clay to Dr. Heinrich Meier (for a forthcoming German edition of the works of Leo Strauss), who made it available to the editors. This version contains many handwritten alterations, all of them in a hand other than Professor Strauss's. Professor Strauss has added in his own hand only two marginal notations and one correction of the original paragraphing. The editors have therefore retained the original paragraphing (with that one correction), disregarding the many other changes in the paragraphing suggested in the handwritten alterations to the second typescript. As for the other changes from the text of the first type script, whether introduced in the second typescript itself or in the handwritten alterations to it, the editors, in the absence of any indication as to whether they were approved of by Professor Strauss, have generally adopted only those that correct obvious errors. Significant alternatives to the text of the first typescript, however, whether adopted or not, have been noted. A few minor corrections in spelling and punctuation have not been noted. The editors are grateful to Pro fessor Jenny Strauss Clay and Dr. Heinrich Meier for making the second type script available to them, and to Eric Buzzetti and Devin Stauffer for their editorial assistance. This lecture was published before in The Rebirth of Classical Political Ra tionalism: An Introduction to the Thought of Leo Strauss, ed. T. L. Pangle (Chicago: The University of Chicago Press, 1989) [1989, The University of Chicago]. Reprinted by permission. i interpretation, Fall 1996, Vol. 24, No. 1