 The former president of the Republic of Senegal, Abdou Diouf, named him Counselor for Education and Culture, a position which he held from 1993 to 1999.Diagne is co-director of "Éthiopiques", a Senegalese journal of literature and philosophy and a member of the editorial committees of numerous scholarly journals, including the "Revue d’histoire des mathématiques", "Présence africaine", and "Public Culture".He is a member of the scientific committees of "Diogenes" (published by UNESCO’s International Council for Philosophy and Humanistic Studies), CODESRIA ("Conseil pour le développement de la recherche en sciences sociales en Afrique"), and of the African and Malagasy Committee for Higher Education (CAMES), as well as UNESCO’s Council on the Future.