"If homosexuality is not a choice - if it exists as a result of biological forces -- then a ban on homosexual marriage is like stopping a bus, separating the passengers into groups of "white" and "black" and executing the blacks. "

"If homosexuality is a choice - if it is a freely selected system of values - then a ban on homosexual marriage is like stopping a bus, separating the passengers into groups of "Shiite" and "Sunni", and executing the Sunni."