Martin Luther King Jr.

"The most urgent, the most disgraceful, the most shameful and the most tragic problem is silence."
"Darkness cannot drive out darkness; only light can do that."
The civil rights leader would have been 87 today.
"The same problems that we're discussing today, we discussed in 1990, 1980, 1970 and 1960," the rapper said.
Carter is currently undergoing treatment for cancer that has spread to his brain.
"He will encourage us not to leave the public square."