Let us differentiate the inestimable benefits of accumulated knowledge from the tendency to hold fast to the past out of fear of the unknown. The beliefs we cling to, particularly about ourselves, are a denial of the growth of knowledge. When our habits have a stronger impact on us than facts, we are in danger of rejecting discovery in return for a mental story-line about the world and ourselves. For thousands of years, it was the belief that man cannot fly; however, innovation exposed this belief as false. No reason exists to think that a new understanding could not grant us many choices beyond our current beliefs about the world and ourselves.
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