Who said "We must have the courage to speak truth to power."?

This quote is attributed to Joe Modise.

We must have the courage to speak truth to power. - Joe Modise

"We must have the courage to speak truth to power."

Joe Modise Courage

Military Leader, ANC Commander South African 1929–2001

"The only way to do great work is to love what you do."

"Life is what happens when you're busy making other plans."

"The future belongs to those who believe in the beauty of their dreams."

"It is during our darkest moments that we must focus to see the light."

"Never let fear stop you from chasing your dreams."

"Courage is being afraid but doing it anyway."

"Sometimes you gotta do what you gotta do."

"Sometimes you have to be the monster to stop the monsters."