Bertrand Russell is known primarily as a logician, philosopher of mathematics, and analytical philosopher. However, a significant part of his life was devoted to world peace: he was an active pacifist from 1901 until his death. This article shows him in this role. Russell’s pacifist activities included not only participation in demonstrations and organizations, but also educational activities. He dealt with issues of education as a theorist and a practitioner. He organized his educational endeavour round the question of how to educate a pacifist and at the same time help her/him remain a free and creative woman/man.