Technologically, modern man does everything he can do-he functions on this single boundary principle. Modern man, seeing himself as autonomous, with no personal-infinite God who has spoken, has no adequate universal to supply an adequate second boundary condition; and man being fallen is not only finite, but sinful. Thus man's pragmatically made choices have no reference point beyond human egotism. It is dog eat dog, man eat man, man eat nature.

Pollution and the death of man: the Christian view of ecology (ed. 1970)