(1**) I regard most doctrines as metaphors.** As mortals, we really can't understand this vast and awesome universe, and we yearn to do so. So, we devise theologies based mainly on myths that help us make sense of this world and our relationship to it. I have no problem with this. Humans need it. However, when any church begins to say that it alone is the one, true church, that its dogmas are infallible - that's when I have a problem. Sounds much less than humble to me.
(2) **Religious faith is a lot like art or music.** We don't ask: is that art true or is that music true? We judge it in large measure by what it does to and/or for us. Most doctrine, in my view, is not so much a matter of truth, which is beyond our human understanding, but do such dogmas provide us with courage, kindness, compassion, confidence, faith, bope and especially love? Creeds were written mainly to identify and ostracize 'heretics'. Even St. Thomas Aquinas said that heretics should be executed! Dogmatic thinking - we have the truth and you don't! - led to several centuries of conflict and even sectarian killing. It still is at the root of much bigotry and arrogance today.
(3) **Most mainline Protestants I know - and most Catholics, too. for that matter - don't regard their particular church as superior to all others**. Protestants, in fact, are apt to change denominations quite easily - when they move, for example. This has much more to do with other factors than doctrine. It is determined more by friendliness. location, church program, preaching, music, times of worship, facilities, parking, etc.Often Presbyterian neighbors invite a Methodist family, new in the area, to their church, and the Methodists become Presbyterians. Not a major change. In Canada, for example, there are no Methodists, no Congregationalists and few Presbyterians. Why? The Methodist, Congregationalist and majority of Presbyterian churches merged to become the United Church of Canada. Most mainline Protestants I know are very ecumenical, very slow to judge the religious faith of others. We need this spirit within Catholicism. I had hoped that John XXIII succeeded in doing that, but we seem to have slipped since Vatican II - the hierarchy, not the people.