Alfonso Pérez de Laborda is from Bilbao, born in San Sebastián in 1940, of Navarre origins and landscapes. Doctor in Industrial Engineering (Bilbao). Doctor in Theology (Leuven). Then, also, abulense and madrileño. Secular priest. He was a professor at the Pontifical University of Salamanca and the Université Catholique de Louvain. Fellow of the Center for Philosophy of Science at the University of Pittsburgh. Since 1998, professor of philosophy at the now San Dámaso University of Madrid.