ATLANTA, Georgia (CNN) -- Barack Obama's inauguration marks a profound manifestation of the Rev. Martin Luther King's dream, civil rights leaders say, but the movement would be foolish to drop its guard now. Christine King Farris sits next to a photo of her brother as she reads to kids to commemorate his birthday Thursday. King did not fight tirelessly and ultimately give his life so African-Americans could take office; he fought for the disenfranchised and downtrodden, no matter their color, said Charles Steele, president and CEO of the Southern Christian Leadership Conference, which King and Steele's father helped found. "President-elect Barack Obama is just a piece of the puzzle," he said. "This tells us that we are at a station, but it's not our destination. We've got to get back on the train."
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SCLC president says King supporters must "march now more than ever before"
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Andrew Young: "I can't think of a nicer birthday present for Martin Luther King"
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Maya Angelou: "We needed President-elect Obama desperately, and he needs us"
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Martin Luther King Jr.'s sister spends his birthday teaching lesson to children
Those down for the cause today must do the same with @placeholder, Steele said.