If a State refused to let religious groups use facilities open to others, then it would demonstrate not neutrality but hostility toward religion.
Sandra Day O'Connor[G]overnment endorsement . . . of religion . . . sends a message to nonadherents that they are outsiders, not full members of the political community, and an accompanying message to adherents that they are insiders, favored members of the political community.
Sandra Day O'ConnorWe don't accomplish anything in this world alone... and whatever happens is the result of the whole tapestry of one's life and all the weavings of individual threads form one to another that creates something.
Sandra Day O'Connor