Toward the end of the nineteenth century, two religiously committed dignitaries, acting independently of one another and indeed in two quite distinct communities within the Christian tradition, produced significant contributions to social, political, and legal thought. Their special influence within the respective religious communities from which they stemmed was, in itself, remarkable. Even more remarkable is the fact that aspects of their sociopolitical and jurisprudential theories are clearly echoed in distinct doctrines reflected in contemporary international law.
Johan D. van der Vyver, "The Jurisprudential Legacy of Abraham Kuyper and Leo XIII," Journal of Markets & Morality 5, no. 1 (Spring 2002): 211-249