In Romans 7, St. Paul says, ...

In Romans 7, St. Paul says, \
In Romans 7, St. Paul says, "The law is spiritual." What does that mean? If the law were physical, then it could be satisfied by works, but since it is spiritual, no one can satisfy it unless everything he does springs from the depths of the heart. But no one can give such a heart except the Spirit of God, who makes the person be like the law, so that he actually conceives a heartfelt longing for the law and henceforward does everything, not through fear or coercion, but from a free heart.
 Martin Luther

Quotes from the same author

Idiots, the lame, the blind, the dumb, are men in whom the devils have established themselves: and all the physicians who heal these infirmities, as though they proceeded from natural causes, are ignorant blockheads.
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 Martin Luther
Therefore be on your guard against the Jews, knowing that wherever they have their synagogues, nothing is found but a den of devils in which sheer self-glory, conceit, lies, blasphemy, and defaming of God and men are practiced most maliciously and veheming his eyes on them.
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 Martin Luther
Men have broad and large chests, and small narrow hips, and more understanding than women, who have but small and narrow breasts, and broad hips, to the end they should remain at home, sit still, keep house, and bear and bring up children.
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 Martin Luther
I refuse to accept the idea that man is mere flotsam and jetsam in the river of life, unable to influence the unfolding events which surround him. I refuse to accept the view that mankind is so tragically bound to the starless midnight of racism and war that the bright daybreak of peace and brotherhood can never become a reality.
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 Martin Luther
When Eve was brought unto Adam, he became filled with the Holy Spirit, and gave her the most sanctified, the most glorious of appellations. He called, her Eva--that is to say, the Mother of All. He did not style her wife, but simply mother--mother of all living creatures. In this consists the glory and the most precious ornament of woman.
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 Martin Luther