Who said "Don't stay silent when you need to speak up."?

This quote is attributed to Oprah Winfrey.

Don't stay silent when you need to speak up. - Oprah Winfrey

"Don't stay silent when you need to speak up."

Oprah Winfrey Justice

Media Mogul American Born 1954 (age 72)

"Turn your wounds into wisdom."

"You get in life what you have the courage to ask for."

"The biggest adventure you can take is to live the life of your dreams."

"You are responsible for your life."

"Justice must always prevail."

"You think I'm just some animal?"

"Fighting for what's right never gets easier."

"Justice is worth fighting for."