My thoughts on spirituality and religious people are summed up in this Sam Harris quote. Water is two parts hydrogen and one part oxygen. What if someone says, "Well, that's not how I choose to think about water."? All we can do is appeal to scientific values. And if he doesn't share those values, the conversation is over. If someone doesn't value evidence, what evidence are you going ot provide to prove that they should vale ut? If someone doesn't value logic, what logical argument could you provide to show the importance of logic?