Whitney Otto said this quote
“ No one fights dirtier or more brutally than blood; only family knows it’s own weaknesses, the exact placement of the heart. The tragedy is that one can still live with the force of hatred, feel infuriated that once you are born to another, that kinship lasts through life and death, immutable, unchanging, no matter how great the misdeed or betrayal. Blood cannot be denied, and perhaps that’s why we fight tooth and claw, because we cannot—being only human—put asunder what God has joined together. ”