"It should be remembered that in the order of Divine Providence the man who puts one end of a chain around the ankle of his fellow man will find the other end around his own neck. And it is the same with a nation. Confirmation of this truth is as strong as thunder. "As we sow, we shall reap," is a lesson to be learned here as elsewhere. We tolerated slavery, and it cost us a million graves, and it may be that lawless murder, if permitted to go on, may yet bring vengeance, not only on the reverend head of age and upon the heads of helpless women, but upon the innocent babe in the cradle."
January 1, 1970
https://en.wikiquote.org/wiki/Frederick_Douglass