"Suffice it to say that the child in the womb satisfies the three criteria for personhood he is human, he lives and he has his being—enunciated in Levy v. Louisiana. He is clearly alive and in being. As the living offspring of human parents, he can be nothing else but human. As a living human being he is therefore a person within the meaning of the Equal Protection Clause. Even if one somehow does not concede that the child in the womb is a living human being, one ought at least to give him the benefit of the doubt. Our law does not permit the execution, or imprisonment under sentence, of a criminal unless his guilt of the crime charged is proven beyond a reasonable doubt. The innocent child in the womb is entitled to have us resolve in his favor any doubts we may feel as to his living humanity and his personhood."