Abraham Kuyper as "the physical basis for all higher development" in the Stone Lectures (1898). Harinck argues that "Kuyper was not guided by the cultural racism of his day, but by his Calvinistic creed of human equality". Kuyper's legacy includes a granddaughter, Johtje Vos, who is noted for having sheltered many Jews in her home in the Netherlands from the Nazis. After World War II she moved to New York City. Conversely, Kuyper's son Professor H. H. Kuyper, a supporter of Afrikaner Nationalism and colour racism, was a wartime Nazi collaborator and his grandson joined the Waffen SS and died on the
Abraham Kuyper on the basis of a dissertation entitled "Disquisitio historico-theologica, exhibens Johannis Calvini et Johannis à Lasco de Ecclesia Sententiarum inter se compositionem" (Theological-historical dissertation showing the differences in the rules of the church, between John Calvin and John Łaski). In comparing the views of John Calvin and Jan Łaski, Kuyper showed a clear sympathy for the more liberal Łaski. During his studies Kuyper was a member of the modern tendency within the Dutch Reformed Church. In May 1862, he was declared eligible for the ministry and 1863 he accepted a call to become minister for the Dutch Reformed Church for