Catholic Church Religious aspects 609 Doctrines 419 History 375 Spiritual life 260 Church and social problems 165 Relations 142 more ... Christian sociology 140 Christianity 96 Catholic authors 95 Church history 89 Clergy 87 Église catholique 86 Mysticism 80 History of doctrines 78 Spirituality 78 Pastoral theology 73 Sacraments 66 Liturgy 63 Lord's Supper 62 Siena Donor: Holy Name Province 62 Siena Donor: St. Bernard's Institute 61 Christian ethics 57 Marriage 55 Judaism 53 Religious life 51 Church and state 46 Foreign relations 44 Catholics 41 Church renewal 41 less ...