The Rev. Martin Luther King Jr. lived from Jan. 15, 1929, to April 4, 1968. The quote above is from a speech he gave in Memphis on behalf of striking black sanitation workers the night before he was killed.

Here are some others:

“He who passively accepts evil is as much involved in it as he who helps to perpetuate it. He who accepts evil without protesting against it is really cooperating with it.”

“Human salvation lies in the hands of the creatively maladjusted.”

“Change does not roll in on the wheels of inevitability, but comes through continuous struggle. And so we must straighten our backs and work for our freedom. A man can’t ride you unless your back is bent.”

“Rarely do we find men who willingly engage in hard, solid thinking. There is an almost universal quest for easy answers and half-baked solutions. Nothing pains some people more than having to think.”