Scientists do not join hands every Sunday and sing "Yes gravity is real! I know gravity is real! I will have faith! I believe in my heart that what goes up, up, up must come down, down, down. Amen!" If they did, we would think they were pretty insecure about the concept.
Godless: How an Evangelical Preacher Became One of America's Leading Atheists (ed. Ulysses Press, 2009) - ISBN: 9781569751480