Fish nor Flesh or Both? Foods for the future. City Food Lecture 2020, Guildhall London
De onvolmaakte waarheid over voedselproductie en voedselzekerheid (‘The incomplete truth about food production and food security’).Lecture on the occasion of acceptance of the honorary doctorate at the KU Leuven, 2017
From agricultural to food policy and beyond. Mansholt Lecture, Brussels, 2016
De rol van landbouwbiotechnologie bij de productie van duurzaam voedsel (‘The role of agricultural technology in the production of sustainable food’).Da Vinci Lecture, Brussels 2016
New Dutch Masters: The Fear of Innovation.Lecture, Netherlands Permanent Mission, Geneva, 2016
Waar ligt de horizon? Over wetenschap en kunst (Where is the horizon? About science and art’). Lustrum lecture, The Amsterdam Academic Club, 2016
The state of the art and current dilemmas of biotechnology for poor producers and consumers. Keynote lecture, FAO International Symposium, Rome, 2016
Introduction: Redesigning Food Systems for a 2015 World.Lecture EAT, Stockholm Food Forum, 2015
Kruisbestuiving (‘Cross Pollination’).General Studies Lecture, Utrecht University, 2015
Bridging the gap between science and society.Opening of Academic Year Wageningen University & Research, 2014
De Nieuwe Zijderoute (‘The New Silk Route’).Socrates Lecture, Amsterdam, 2014
Achter de schermen van ‘Fresco’s Paradijs’ (‘Behind the scenes of Fresco’s Paradise’). Valedictory Lecture University of Amsterdam, 2014
Monsters van Jheronimus Bosch (‘Monsters of Jheronimus Bosch’). Essay, presented during Bosch Requiem in the Saint John’s Cathedral of ’s-Hertogenbosch, 8 November 2013
A treaty on animal production and other revisions in the Book of Agriculture and Food.Address to the 95th anniversary of Wageningen University and Research, Wageningen, March 15, 2013
Food, Scarcity and Abundance. Keynote speech at the 200th Commemorative Meeting of the Royal Swedish Academy of Agriculture and Forestry, Stockholm, January 28, 2013
Al door het zeggen van het woord (‘Just by saying the word’). Abel Herzberg Lecture, Amsterdam, 16 September 2012
Noem mij jouw muziek (‘Tell me your music’). Royal Concertgebouw Orchestra, Forum Lecture on the occasion of the Introductory Concert, Amsterdam, 4 July 2012
Feiten in overvloed (‘Facts in abundance’).Kohnstamm Lecture, Amsterdam, 25 March 2011
Van de vette streken der aarde en overvloed van koren (‘Earth’s richness and an abundance of
grain’). 12th Victor Westhoff Lecture, Nijmegen, 27 May 2010
Vlees noch vis (‘Neither fish nor flesh’).AUV Lecture, Amsterdam, 7 November 2009
How to feed the whole world. The case for white bread. TED lecture, Longbeach USA, February 2009
De smaak van het zonlicht (‘The taste of sunlight’).Groeneveld Lecture upon acceptance of the
Groeneveld Award, Kasteel Groeneveld, 1 October 2008
Sustainable development as a multilateral and cultural issue.Keynote at the symposium to celebrate the Fifth Anniversary of the Prince Claus Chair at Paleis Noordeinde, The Hague, 22 June 2007
Het einde van de universiteit (‘The end of the university’). Address on the occasion of the 375th Foundation Day of the University of Amsterdam, Amsterdam, 8 January 2007
Biomass, food and sustainability. Rabobank Duisenberg Lecture, Singapore, September 17, 2006
Nieuwe Spijswetten (‘New dietary laws’). Cleveringa Address, Leiden University, Leiden, 28 November 2005
27th Huizinga Lecture, Leiden, 20 December 1998