Sidney Poitier is an actor known for breaking racial barriers.

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With his musical talent, he helped us transcend racial barriers.

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Nike brought him aboard because he was a potentially transformative star who had the ability to break down racial barriers in the world's most staid sport.

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The other aspect that he learned from Frederick Douglass, which I think is crucial, is that to quote Frederick Douglass now, true love breaks down racial barriers.

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Over the years, sports and play have broken down racial and cultural barriers.

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High rates of intermarriage signal a breakdown in barriers between racial or ethnic groups.

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