One day, a man named Truth and a man named Lie stood by a river just outside of town. They were twin brothers.
Lie challenged Truth to a race, claiming he could swim across the river faster than Truth. He laid out the rules, stating that they both must remove all their clothes and at the count of three, dive into the freezing water and swim to the other side and back.
But when Truth jumped in, Lie did not, instead putting on Truth's clothes and parading around town pretending to be Truth.
When Truth made it back to shore, he refused to put on Lie's clothes and walked back to town naked.
People stared and glared as naked Truth walked through town. He tried to explain, but because he was naked, people mocked and shunned him, refusing to believe he was really Truth.
The people in town chose to believe Lie because he was dressed appropriately and easier to look at. From that day until this, people have come to believe a lie rather than believe a naked truth.
Many people don't believe what they hear because they've been burned in the past.
Several famous fibs come to mind: We service what we sell. Money is cheerfully refunded. It's on the truck. The check is in the mail.