This admirable quote is actually by Marianne Williamson.
Happy Birthday to Nelson Mandela, and here are some of his actual words:
“It was during those long and lonely years that my hunger for the freedom of my own people became a hunger for the freedom of all people, white and black. I knew as well as I knew anything that the oppressor must be liberated just as surely as the oppressed. A man who takes away another man’s freedom is a prisoner of hatred, he is locked behind the bars of prejudice and narrow-mindedness. I am not truly free if I am taking away someone else’s freedom, just as surely as I am not free when my freedom is taken from me. The oppressed and the oppressor alike are robbed of their humanity.”
Oppressed people do not and should not have to explain their oppression to their oppressor, nor tailor their resistance to the comfort of the oppressors and their supporters.