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What one sees and what is true may be entirely different. It seems that the Sun is revolving around the Earth. |

Refusing to look through Galileo's telescope
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Everyone in a given society may be wrong. What members of a culture believe—and what is actually the case—may be different. |
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When the truth contradicts what people believe, they tend to abandon the truth. |
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People tend to refuse to consider evidence—if what they might discover contradicts what they believe. |