7 greatest Martin Luther King Jr. quotes

Dr. Martin Luther King Jr., right, speaks at a news conference in Chicago, Ill., Jan. 7, 1966. King, the head of the Southern Leadership Conference, a civil rights organization, announced Chicago as the target of his first major effort in the North in his campaign to clean up slum neighborhoods. Seated at left is Albert Raby, head of the Coordinating Council of Community Organizations, also working for civil rights.

Credit: (AP-Photo)

Credit: (AP-Photo)

Dr. Martin Luther King Jr., right, speaks at a news conference in Chicago, Ill., Jan. 7, 1966. King, the head of the Southern Leadership Conference, a civil rights organization, announced Chicago as the target of his first major effort in the North in his campaign to clean up slum neighborhoods. Seated at left is Albert Raby, head of the Coordinating Council of Community Organizations, also working for civil rights.

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."