Martin Luther King’s ‘I Have a Dream’ was the most important speech at the March on Washington. This was a close second.

At the age of 92, attorney and activist Clarence Jones reminds us of the life Martin Luther King Jr. might have enjoyed if he had been a simple church pastor or a seminary professor. Jones, a top King lieutenant and a trusted friend of the slain civil rights leader, has been blessed with longevity and a perch from which to reflect on a great man and an even greater movement. “I thought Martin Luther King Jr. was one of the greatest geniuses of our time,” said Jones, a lawyer and adviser who helped craft many of King’s soul stirring speeches. “An imperfect person and a perfect calling.” Sixty y...