– "Thoughts on Modernity." In Conditions and Purposes of the Modern University: The Christian Dimension, 19-30. Washington, D.C.: Catholic Commission on Intellectual and Cultural Affairs. Collected Essays vol. 3, pp. 145-57.
– "Catholic Intellectual Life and the Modern World." In Intellectual and Cultural Possibilities Generated by Vatican II, 6-8. Washington, D.C.: Catholic Commission on Intellectual and Cultural Affairs.
– "Nietzsche and the Crisis of Nihilism." In Meaning, Truth and God, 195-215. Edited by L. S. Rouner. Notre Dame: University of Notre Dame Press, 1982. Collected Essays vol. 2, pp. 337-53.
– "The Regime of Separatism: Theoretical Considerations on the Separation of Church and State." In Modernity and Religion, 145-65. Edited by Ralph McInerny. Notre Dame: University of Notre Dame Press, 1994. Collected Essays vol. 3, 1-18.
– "On the Presumed Medieval Origin of Individual Rights." In Final Causality in Nature and Human Affairs, 86-106. Edited by Richard Hassing. Washington: Catholic University of America Press. Reprinted in Communio 26 (Spring 1999): 55-79. Collected Essays vol. 2, 243-64.
– "Thoughts on Modernity." In Conditions and Purposes of the Modern University: The Christian Dimension, 19-30. Washington, D.C.: Catholic Commission on Intellectual and Cultural Affairs. Collected Essays vol. 3, pp. 145-57.
– "Catholic Intellectual Life and the Modern World." In Intellectual and Cultural Possibilities Generated by Vatican II, 6-8. Washington, D.C.: Catholic Commission on Intellectual and Cultural Affairs.
– "Nietzsche and the Crisis of Nihilism." In Meaning, Truth and God, 195-215. Edited by L. S. Rouner. Notre Dame: University of Notre Dame Press, 1982. Collected Essays vol. 2, pp. 337-53.
– "The Regime of Separatism: Theoretical Considerations on the Separation of Church and State." In Modernity and Religion, 145-65. Edited by Ralph McInerny. Notre Dame: University of Notre Dame Press, 1994. Collected Essays vol. 3, 1-18.
– "On the Presumed Medieval Origin of Individual Rights." In Final Causality in Nature and Human Affairs, 86-106. Edited by Richard Hassing. Washington: Catholic University of America Press. Reprinted in Communio 26 (Spring 1999): 55-79. Collected Essays vol. 2, 243-64.
– "Thoughts on Modernity." In Conditions and Purposes of the Modern University: The Christian Dimension, 19-30. Washington, D.C.: Catholic Commission on Intellectual and Cultural Affairs. Collected Essays vol. 3, pp. 145-57.
– "Catholic Intellectual Life and the Modern World." In Intellectual and Cultural Possibilities Generated by Vatican II, 6-8. Washington, D.C.: Catholic Commission on Intellectual and Cultural Affairs.
– "Nietzsche and the Crisis of Nihilism." In Meaning, Truth and God, 195-215. Edited by L. S. Rouner. Notre Dame: University of Notre Dame Press, 1982. Collected Essays vol. 2, pp. 337-53.
– "The Regime of Separatism: Theoretical Considerations on the Separation of Church and State." In Modernity and Religion, 145-65. Edited by Ralph McInerny. Notre Dame: University of Notre Dame Press, 1994. Collected Essays vol. 3, 1-18.
– "On the Presumed Medieval Origin of Individual Rights." In Final Causality in Nature and Human Affairs, 86-106. Edited by Richard Hassing. Washington: Catholic University of America Press. Reprinted in Communio 26 (Spring 1999): 55-79. Collected Essays vol. 2, 243-64.
– "Thoughts on Modernity." In Conditions and Purposes of the Modern University: The Christian Dimension, 19-30. Washington, D.C.: Catholic Commission on Intellectual and Cultural Affairs. Collected Essays vol. 3, pp. 145-57.
– "Catholic Intellectual Life and the Modern World." In Intellectual and Cultural Possibilities Generated by Vatican II, 6-8. Washington, D.C.: Catholic Commission on Intellectual and Cultural Affairs.
– "Nietzsche and the Crisis of Nihilism." In Meaning, Truth and God, 195-215. Edited by L. S. Rouner. Notre Dame: University of Notre Dame Press, 1982. Collected Essays vol. 2, pp. 337-53.
– "The Regime of Separatism: Theoretical Considerations on the Separation of Church and State." In Modernity and Religion, 145-65. Edited by Ralph McInerny. Notre Dame: University of Notre Dame Press, 1994. Collected Essays vol. 3, 1-18.
– "On the Presumed Medieval Origin of Individual Rights." In Final Causality in Nature and Human Affairs, 86-106. Edited by Richard Hassing. Washington: Catholic University of America Press. Reprinted in Communio 26 (Spring 1999): 55-79. Collected Essays vol. 2, 243-64.
– "Thoughts on Modernity." In Conditions and Purposes of the Modern University: The Christian Dimension, 19-30. Washington, D.C.: Catholic Commission on Intellectual and Cultural Affairs. Collected Essays vol. 3, pp. 145-57.
– "Catholic Intellectual Life and the Modern World." In Intellectual and Cultural Possibilities Generated by Vatican II, 6-8. Washington, D.C.: Catholic Commission on Intellectual and Cultural Affairs.
– "Nietzsche and the Crisis of Nihilism." In Meaning, Truth and God, 195-215. Edited by L. S. Rouner. Notre Dame: University of Notre Dame Press, 1982. Collected Essays vol. 2, pp. 337-53.
– "The Regime of Separatism: Theoretical Considerations on the Separation of Church and State." In Modernity and Religion, 145-65. Edited by Ralph McInerny. Notre Dame: University of Notre Dame Press, 1994. Collected Essays vol. 3, 1-18.
– "On the Presumed Medieval Origin of Individual Rights." In Final Causality in Nature and Human Affairs, 86-106. Edited by Richard Hassing. Washington: Catholic University of America Press. Reprinted in Communio 26 (Spring 1999): 55-79. Collected Essays vol. 2, 243-64.
