If I affirm myself as a Catholic merely by denying all that is Muslim, Jewish, Protestant, Hindu, Buddhist, etc., in the end I will find that there is not much left for me to affirm as a Catholic, and certainly no breath of the Spirit with which to affirm it.
— Thomas Merton, The Thomas Merton Encyclopedia by William H. Shannon, editor, Christine M. Bochen, editor, Patrick F. O'Connell, editor