Although that Vietnam-era quote is attributed to Ali, what he actually said is much more powerful to me.
"My conscience won't let me go shoot my brother, or some darker people, or some poor hungry people in the mud for big powerful America. And shoot them for what? They never called me ******, they never lynched me, they didn't put no dogs on me, they didn't rob me of my nationality, rape and kill my mother and father... Shoot them for what? How can I shoot them poor people? Just take me to jail."
RIP Mohammad Ali.