Who said "The system that oppresses us was not built in a day."?

This quote is attributed to Stokely Carmichael.

The system that oppresses us was not built in a day. - Stokely Carmichael

"The system that oppresses us was not built in a day."

Stokely Carmichael Patience

Civil Rights Leader, Activist Trinidadian-American 1941–1998

"The only way to deal with an unfree world is to become so absolutely free that very existence of people is an act of rebellion."

"We are going to initiate a plan to get rid of every Black man and woman in this country."

"Don't beg for your rights, take them."

"Black is beautiful."

"Patience is a virtue I'm still learning."

"I may be a redhead, but I'm not a hothead."

"Patience is a virtue."

"Patience is a virtue I never learned."