On Aug. 28, 1963, Dr. Martin Luther King Jr. delivered his iconic "I Have a Dream" speech.

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Although the speech is King’s most frequently quoted, the civil rights legend gave many speeches on a range of topics – and they aren't all about "dreams" and "mountaintops."

Here are some of King’s lesser-known quotes:

1. On the rationalization of slavery, from his 1963 collection of sermons "Strength to Love:" "Nothing in all the world is more dangerous than sincere ignorance and conscientious stupidity."

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Fireworks will be set off at dusk at Alpharetta’s Independence Day event at Wills Park. The photo shows a view of a previous year’s fireworks from the nearby Walk of Memories at American Legion Post 201. (Courtesy of Alpharetta Convention & Visitors Bureau/Jack Tuszynski)

Credit: Jack Tuszynski/PhotoJack.net

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People carrying a giant pride flag participate in the annual Pride Parade in Atlanta on Sunday, Oct. 13, 2024. (Miguel Martinez/AJC)

Credit: Miguel Martinez-Jimenez