As a primary school teacher in Copenhagen, and, simultaneously, as a student of philosophy at The Universityof Copenhagen, Grue-Sörensen became so well acquainted with contemporary psychology that he, in theyears 1941-55, worked as a school psychologist in Copenhagen. Furthermore, from 1934 until 1955, he published 22 articles or chapters about psychological issues. The present contribution presents and characterizes the 22 publications categorized in works about developmental psychology, and works about central psychological issues – motivation, learning, and cognition. In the last (...) Section, Grue-Sörensen’s understanding of the relationships between the fields of education, philosophy and psychology is discussed, especially the question of the importance of psychology to education. Finally, it is concluded that, according to Grue-Sörensen, the value of philosophy to psychology is not to off er insight into theories of science but, rather, inspiration to use words and concepts in a clear and careful way. (shrink)