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How often do you hear one person in a dinner party argument say, ‘Yes, on consideration, I’m persuaded by your argument. You’ve helped me to see things differently. Thank you for helping me to become wiser.’ No, what you witness is two combatants beating each other over the head with predetermined opinions that have as little chance of shifting as those of the Reverend Ian Paisley. It’s a pity, as the fear of being shown to be wrong, or to shift one’s opinion, does a lot of harm, causes us a lot of unnecessary stress and keeps us as ignorant as a politician.
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