Martinus Jan Langeveld (1905–1989) was one of the most prominent educational theorists in the Netherlands in the second half of the twentieth century. He was one of the originators of the Dutch tradition of “pedagogiek” (“pedagogy”; but see further, section “A Note on Translation”) and was the founder of the study of “pedagogiek” at the university in the Netherlands after WWII. During his own years of study he was mentored by the Dutch philosopher and educational theorist Philipp Kohstamm and the Dutch philosopher Hendrik Pos and was taught by such prominent philosophers and scholars as (among others) Edmund Husserl, Martin Heidegger, Wilhelm Stern, Karl Jaspers, Herman Nohl, and Ernst Cassirer. He obtained his doctorate in 1934 with a dissertation entitled “Taal en Denken” (Language and Thinking), under the supervision of Kohnstamm.