“Neutrinos have mass? I didn't even know they were Catholic!" Robert to Vittoria”

“Photons have mass? I didn’t even know they were Catholic.”

“Langdon whispered to Vittoria. 'Ever fire anything other than a tranquilizer gun?''Don't you trust me?''Trust you? I barely know you.'Vittoria frowned. 'And here I thought we were newly-weds.”

“So I sit and endure the stares and the pangs and twinges of Catholic guilt, knowing that I am doing the right thing if I'm right, and the right thing even if I'm wrong. Being Catholic is hard. Being ex-Catholic is even harder.”

“You were leaving, and you didn't even know if I was okay.”

“The Irish people didn't get on that well with each other either. They hated the Catholics, was the main issue, as I see. You can't blame them for that. If I understand correctly, Catholics do not believe in contraception. So, you know, sex is not relaxing.”