"Progress is often equal to the difference between mind and mindset."

"Human progress is neither automatic nor inevitable… Every step toward the goal of justice requires sacrifice, suffering, and struggle; the tireless exertions and passionate concern of dedicated individuals."

"The ultimate tragedy is not the oppression and cruelty by the bad people but the silence over that by the good people."

"We must learn to live together as brothers or perish together as fools."

"Our scientific power has outrun our spiritual power. We have guided missiles and misguided men."

"We must come to see that the end we seek is a society at peace with itself, a society that can live with its conscience."

"I have a dream that one day little black boys and girls will be holding hands with little white boys and girls."

"What is wrong in the world today is that the nations of the world are engaged in a bitter, colossal contest for supremacy."

"I have a dream that my four little children will one day live in a nation where they will not be judged by the color of their skin, but by the content of their character."

"A nation or civilization that continues to produce soft-minded men purchases its own spiritual death on the installment plan."