Speaking Engagements


“Religious Freedom and Other Human Rights: Threats and Trends,” Torun, Poland, May 31-June 2, 2023.

“De bijzondere status van religie in onze rechtsstaat,” bachelor-studievereniging encyclopedie en filosofie van het recht DIQIT, Leiden, 14 juni 2023.

“Arendt en Burke,” Hannah Arendt Instituut, Mechelen, België, 14 december 2023.

Past events

“Some comments in response to András Sajó’s conception of constitutional secularism,” ETF Leuven, Belgium, May 4-5, 2023.

“De staat van de godsdienstvrijheid,” Netwerk Recht en Religie, 27 maart 2023.

Mede-organisator en workshop-voorzitter, Bloggers-bijeenkomst Tocqueville, Centrum Soeterbeeck, Nijmegen, 16 maart 2023.

“De huidige parlementaire staat van Nederland,” Studentenvereniging voor Internationale Betrekkingen, afdeling Leiden, 18 januari 2023.

“James Madison’s Memorial and Remonstrance against Religious Assessments, 1785”, lezingenreeks “Filosofie en geloof”, JSV Justus Lipsius, studievereniging van de master Encyclopedie en Filosofie van het Recht, Leiden, 16 november 2022.

Co-Chair, Panel, “Human Dignity and Common Good Constitutionalism,” 6th Conference of the International Consortium for Law and Religion Studies (ICLARS), Cordóba, Spain, September 19-21, 2022.

Symposium, ‘The Promise and peril of getting beyond individual autonomy’, Thijmgenootschap, Utrecht, 12 mei 2022.

Reflectie, tijdens boekpresentatie “Gescheiden partners. Een geschiedenis van overheid en religieuze organisaties in Nederland”, 3 mei 2022, Universiteit van Amsterdam.

“What is Common Good Constitutionalism?,” Maastricht University, 7th April 2022.

“What is Common Good Constitutionalism?,” Leiden University, 29th March 2022.

“Tocqueville’s Relevance for Modern Democracy,” panel “Political Theory as a Resource for Political Challenges,” Eric Voegelin Society, Annual Meeting of the American Political Science Association, Seattle, Washington, September 30 – October 3, 2021.

“Postliberale onderwijsvrijheid?”, lezing tijdens lustrumcongres C.S.F.R., Amersfoort, 18 september 2021.

Chair, Author Meets Critics panel, Leonard Taylor, Catholic Cosmopolitanism and Human Rights (Cambridge University Press), Annual Conference, European Academy of Religion, 30 August-2 September 2021, Münster, Germany.

“The administrative state redeemed? Vermeule’s plea for more substantive constitutionalism as a recipe for a successful public law of the future,” panel “Performance and Legitimacy of the Administrative State,” 2021 Mundo Conference, International Society of Public Law, July 6-9, 2021.

Tocqueville en de moderne democratie, Radboud Reflects & Radboud Tocqueville-project, 16 februari 2021

‘The European Courts and Religious Groups,’ panel ‘The Future of Constitutional Support for Religious Institutional Autonomy: Comparative Perspectives,’ The International Forum on the Future of Constitutionalism Global Summit, January 12-16, 2021

‘Revolutionaire versus antirevolutionaire staatkunde’ (‘Revolutionary and Antirevolutionary Politics’), presentation during symposium ‘Farewell to Social Democracy?’, Academiegebouw, 13 December 2019 (farewell Ruud Koole)

Guest Lecture, ‘The Federalist Papers in de 21ste eeuw’, bachelorstudievereniging DIQIT, 12 June 2019.

‘The Codification of an Expanding Number of Human Rights and the Ideal of Self-Government’, presentation during Conference ‘Global Human Rights at Risk? Challenges, Prospects, and Reforms’, Leiden University, The Hague Campus, 6-7 June 2019

Guest Lecture, ‘Natuurrecht, mensenrechten en godsdienstvrijheid’ (‘Natural Law, Human Rights, and Religious Freedom’), Vormingscommissie CDJA, Heiloo, 30 March 2019.

‘What’s Wrong with James K.A. Smith’s Criticism of Natural Law’, presentation during Annual Conference of the European Academy of Religion, Bologna, 5 March 2019.

Participant, seminar ‘The Value of Tradition in the Global Context’, Università LUMSA, Rome, 11-13 December 2018.

‘The Relevance of the Federalist Papers Today’, Advanced Course, Acton University, Grand Rapids, MI, 21 June 2018

‘Comparative Constitutional Law and Natural Law’, presentation during Annual Conference of the European Academy of Religion, Bologna, Italy, 8 March 2018

‘Constitutionalism, Democracy, and Religious Freedom. To Be Fully Human’, presentation during Conference ‘Reclaiming the West: Public Spirit and Public Virtue’, Acton Institute, Washington, D.C., 6 December 2017

‘Constitutionalism, Democracy, and Religious Freedom. To Be Fully Human’, book presentation during Annual Meetings of the American Academy of Religion and the Society of Biblical Literature, pre-meeting session ‘Fresh Thinking from the Center of Theological Inquiry’, Boston, MA, 17 November 2017. – Response by Cathleen Kaveny (Boston College)

‘The Significance of Communal Religious Freedom for Liberal Democracy’, paper-presentation during 24thAnnual International Law and Religion Symposium, breakout session ‘Religion and Pluralism in a Changing World’, J. Reuben Clark Law School, Provo, Utah, 1-3 October 2017

‘In Defense of the Classical Liberal Conception Regarding Religious Freedom’, presentation during Annual Conference of the International Society of Public Law on ‘Courts, Power, Public Law’, panel ‘The Separation of Civil and Religious Powers’, University of Copenhagen, 5-7 July, 2017

‘‘The European Court of Human Rights’ “Constitutional Morality” in the Religious Domain’, presentation during Annual Conference of the International Society of Public Law on ‘Courts, Power, Public Law’, panel ‘Effective Protection of Fundamental Rights in a Pluralist World’, University of Copenhagen, 5-7 July, 2017

‘Tussen populisme en technocratie. Sanford Levinson en de betekenis van de Federalist Papers in de 21e eeuw’ (‘Between Technocracy and Federalism. Sanford Levinson and the Significance of the Federalist Papers in the 21st Century’), Symposium Federalist Papers, Belgian Senate, Brussels, 20 April 2017 

‘Christianity, Liberalism, and the Rule of Law’, paper presentation during the Journal of Law, Religion and State Conference2016 on ‘Rule of Law – Religious Perspectives’, Bar-Ilan University School of Law, Ramat-Gan, Israel, November 20-22, 2016

‘Christianity and the Future of Religious Freedom’, paper presentation during conference on ‘Christianity and the Future of Our Societies’, Association of Reformational Philosophy and Evangelische Theologische Faculteit, Leuven, Belgium, August 15-19, 2016

‘The “New Critics of Religious Freedom” and the Inspiration they Unintentionally Provide’, presentation during the Cardiff Festival for Law and Religion Celebrating the 25th Anniversary of the LLM in Canon Law at Cardiff University Including Law and Religion Scholars Network (LARSN) Annual Conference 2016, Cardiff University School of Law and Politics, Centre for Law and Religion, 5th and 6th May 2016

‘The Classical Liberal Approach to Collective Religious Freedom: Sectarian or Inclusive?’, presentation during XXI Quinquennial World Congress of the International Association for the History of Religions (IAHR), panel ‘Religion Renegotiated: Faith-Based Organizations and the State since the 1960s’, Erfurt, Germany, 23-29 August 2015

‘On the Foundation and Limits of Liberal Democracy in an Uncertain World’, presentation during  Annual Conference of the International Society of Public Law on ‘Public Law in an Uncertain World’, panel ‘The Modern Challenges of Democracy’, New York University School of Law, July 1-3, 2015

Commentator, Annual Comparative Law Work-in-Progress Workshop, Co-sponsored by the American Society of Comparative Law; the Program in Law and Public Affairs, Princeton University; the University of Illinois College of Law and the UCLA School of Law, Princeton University, March 6-7, 2015

Participant, Annual Princeton ConLaw Schmooze, ‘The Constitution and Human Rights’, Princeton University, December 5-6, 2014

Commentator, Conference on ‘Religions, Rights, and Institutions’, Session 8 (‘Secular Carve-outs in a Religious World; Religious Carve-outs in a Secular World’), Princeton University’s Program in Law and Public Affairs and the Israel Democracy Institute, Princeton University, November 23-24, 2014

‘Imaginations From the Other Side. Assessing the Juncture between Law, History and Sociology in the Study of State-Religion Interlocutions’, presentation during inaugural conference of the International Society of Public Law on ‘Rethinking the Boundaries of Public Law and Public Space’, University of Florence, 26-28 June 2014. – With Leonard van ‘t Hul

‘Multiple Sovereignties and the Principle of Separation of Powers’, paper presentation during IXth World Congress of Constitutional Law, workshop ‘The Transformation of the Principle of the Separation of Powers’, University of Oslo, 16-20 June 2014

‘Creed or Structure? Christian Democratic Vision and Attitudes towards Liberal Democracy’, paper presentation during workshop on ‘Christian Democratic Ideology and Programmatic Development, 1945-2000’, Civitas. Forum of Archives and Research on Research on Christian Democracy, KU Leuven, 14-15 November 2013

‘Religious Pluralism, Eastern Ethical Monism and Western “Civic Totalism”’, paper presentation during Third ICLARS Conference on ‘Religion, Democracy, and Equality’, The College of William and Mary, Williamsburg, VA, 21-24 August 2013

‘Religious Freedom, Eastern Ethical Monism and Western “Civic Totalism”: Pluralist Constitutionalism as the Answer?’, paper presentation during conference on ‘The Rule of Law with Chinese Characteristics in Transition’, The Centre for Chinese and Comparative Law, School of Law, City University of Hong Kong in association with Chinese Journal of Law, Institute of Law, Chinese Academy of Social Sciences, Beijing, Hong Kong, 5-7 June 2013

‘The State, Civil Society and Religious Freedom’, paper presentation during conference on  ‘Religion and Civil Society; The Changing Faces of “Religion” and “Secularity”’, workshop ‘Religious Freedom in Contemporary Juridical Context’, Harvard Law School, Cambridge, MA, 7-8 June 2012

‘Joseph H.H. Weiler’s Approach to Democratic Legitimacy of the European Union: Is There a Message for Neo-Calvinists?’, paper presentation during Kuyper Center Annual Conference, ‘Neo-Calvinism and Democracy’, Princeton University, NJ, 19-21 April 2012

‘Habermas and Ratzinger and the Three Dimensions of State Legitimacy’, paper presentation during workshop ‘Observing Political Legitimacy’, Universiteit Leiden, 18 November 2011

‘From Dooyeweerd Cabinet to Minority Cabinet: The Democratic Order at Stake?’, paper presentation during International Symposium 2011 on  ‘The Future of Creation Order’, Association for Reformational Philosophy, Vrije Universiteit, Amsterdam, 16-19 August 2011. – With George Harinck

‘A Right Not to be Offended? In Search of the Limits of the Government’s Ability to Display Religious Symbols in the Public Workplace’, paper presentation during Internationaal Symposium ‘Religious Diversity in the European Workplace’, Katholieke Universiteit Leuven, Belgium, 13 January 2011

‘The Dutch Political Reformed Party and Passive Female Suffrage:  A Comparison of Two High Court Judgments in the Light of Constitutional Theory’, paper presentation during symposium ‘Political Parties and Public Law: The Netherlands in Comparative Perspective, Leiden, 25 June 2010

‘The European Court of Human Rights’ Jurisprudence on Religious Symbols in Comparative Perspective: Maximum Protection of the Freedom of Religion Through Judicial Minimalism?’, paper presentation during First ICLARS International Conference on ‘Law and Religion in the 21stCentury: Relations between States and Religious Communities’, workshop ‘Religious Symbols in Public Institutions’, University of Milan, Italy, 22-24 January 2009. – With Florian H. Karim Theissen

Respondent, Annual Meeting of the Dutch Association of Constitutional Law on ‘Rule of Law and Religion’, workshop ‘Adjudication in Religious Cases’, University of Amsterdam, 17 December 2008

‘The European Court of Human Rights and Political Rights: The Need for More Guidance’, paper-presentation during staff exchange Leiden-Oxford, ‘Interpretation of National Law in the Context of Transnational Law’, Leiden, 23-25 September 2008

Participant, Brainstorm ‘Church and State’, Protestant Church in the Netherlands, 5 September 2008, Utrecht

‘”Curbing” Multiculturalism in the European Court of Human Rights’, lecture during day conference on ‘Multiculturalism – Template for Peace or Recipe for Conflict?’, West Yorkshire School of Christian Studies, Leeds, UK, 8 December 2007

‘Legal Perspectives’, comments during The Atlantic Conversations on Religion and Public Life, St. George’s House (in association with Princeton University), Windsor Castle, UK, 29 June-2 July 2007

Participant, Expert Meeting ‘Religion and the Public Domain: American-Style Situations?’, Master Christian Studies and Socires Foundation, Free University, Amsterdam, 6 December 2006

Participant, Expert Meeting ‘Religious Pluralism and Human Rights in Europe: Where to Draw the Line?’, Netherlands Institute of Human Rights, Utrecht, 9-10 May 2006

‘The US and the EU: Multicultural Democracies?’, presentation during Joint Leiden-Duisburg Philosophical Colloquium on ‘Law, Religion, Ethics and Politics’, Leiden, 20 April 2006

‘The Concept of Multicultural Democracy; A Preliminary Christian-Philosophical Appraisal’, paper presentation during  International Symposium 2005 on ‘Ethics: Person, Practices and Society’, Association for Reformational Philosophy, Hoeven, 15-19 August 2005

‘Multicultural Democracy: In Search of a Reformed Approach’, presentation during Assembly Reformed Ecumenical Council, Utrecht, 19 July 2005

‘Protestantism, Globalization, and the Democratic Constitutional State’, paper presentation during Jubilee Congress 1854-2004 on ‘Reshaping Protestantism in a Global Context’, workshop ‘Democracy and Human Rights’, Theologische Universiteit Kampen, Kampen, 1-4 September 2004

‘From Establishment to Strict Separation: The Changing Relationship between Church and State in Europe, paper presentation during Annual Meeting, American Political Science Association, Atlanta, Ga., USA, 2-5 September 1999

‘The Fall of Christian Democracy in Europe’, paper presentation during Second National Conference, Christians in Political Science, Calvin College, Grand Rapids, MI, USA, 17-20 June 1999

‘Recent Developments in the Relationship between Church and State in the European Union: the Role of the Judiciary’, paper presentation during the Interim Meeting of the Research Committee on Comparative Judicial Studies, International Political Science Association, Northeastern University, Boston, MA, USA, 30 August-1 September 1998

The Post-War ARP and Kuyper’s Legacy’, paper presentation during conference on ‘Christianity and Culture. The Heritage of Abraham Kuyper on Different Continents’, Free University, Amsterdam, 9-11 June 1998

‘The Development of Dutch Christian Democracy, 1945-1995’, presentation during international colloquium on ‘Christian Democracy in de European Union, 1945-1995’, Katholiek Documentatie- en Onderzoekscentrum (KADOC), Katholieke Universiteit Leuven, Belgium, 15-18 November 1995

‘The Dutch Party System in Crisis?’, presentation during seminar ‘Party Systems in Crisis?’, School of European Studies, University of Wales, Cardiff, UK, 29 November 1993

‘The European Court of Justice, National Supreme and Constitutional Courts and the Principle of Supremacy of the Community Legal Order: The Need for (More) Research’, paper presentation during Annual Meeting, American Political Science Association, Chicago, Ill., USA, 3-6 September 1992