1. Karl Barth and Emil Brunner,Natural Theology, comprisingNature and Graceby Emil Brunner and the replyNo! by Karl Barth (Eugene, Oregon: Wipf and Stock Publishers, 2002).
2. Emil Brunner,Nature and Grace, pp. 18-19.
3. Barth,No!, p. 83.
4. Barth,No!, p. 89.
5. Brunner,Nature and Grace, p. 23.