Religion ... has certain ideas at the heart of it which we call sacred or holy or whatever. What it means is, 'Here is an idea or a notion that you're not allowed to say anything bad about; you're just not. Why not? Because you're just not. If someone votes for a party that you don't agree with, you're free to argue about it as much as you like; everybody will have an argument but nobody feels aggrieved by it. ... But on the other hand, if somebody says 'I mustn't move a light switch on a Saturday', you say 'I respect that'.