I was Dr. Carson's neighbor until I was 13 years old. I walked home from school with his youngest son, Royce, every day for quite a while. He is a very religious person, but above anything else, he is respectful of others and a seemingly humble person for a man of his caliber. I don't like seeing people trying to throw him into this category of being some religious nut. People are so quick to do that to anyone who mentions religion. His faith is strong, and he attributes his strength to God. God or no God, that man has an amazing level of personal conviction towards being successful that most of us will never have, and if religion is what gives him that strength, I say more power to him.
If anyone is curious about what kind of person he is, if it isn't obvious, he is sort of soft spoken which comes across in his speech, but I never remember him having a great deal to say casually. I closed the Sabbath with him and his family a few times; what they would do is open proverbs and each pick one that they liked, read it, and say what they thought it meant in their own words. Then they would each take turns saying a prayer. This was awkward for me because I was not raised to be religious, and I was not used to praying, so I did not, and they were okay with that. I did not feel like I was looked down on by Dr. Carson or his family for it. My point is, he has respect for everyone's faith and opinions, and if you ever have the chance to meet him I'm sure you would sense his humbleness.
Keep in mind: He is a doctor, not a politician!