William J. Brennan, Jr., Walz v. Tax Commission of the City of New York…
“ It is true that each church contributes to the pluralism of our society through its purely religious activities, but that state encourages these activities not because it champions religion per se but because it values religion among a variety of private, nonprofit enterprises that contribute to the diversity of the Nation. Viewed in this light, there is no nonreligious substitute for religion as an element in our societal mosaic, just as there is no nonliterary substitute for literary groups. ”
