The value of human dignity, which takes precedence over all political action and all political decision refers to the Creator: only He can establish values that are grounded in the essence of humankind and that are inviolable. The existence of values that cannot be modified by anyone is the true guarantee of our freedom and of human greatness […] .
--Cardinal Joseph Ratzinger, (Pope Benedict XVI), Without Roots: The West, Relativism, Chistianity, Islam, 2004