The Origin of Sin and Death

Augustine's definition of original sin is the most important thing he ever wrote. The condemnation changed human nature for the worse so that what first happened as a matter of punishment in the case of the first human beings continued to be something natural and congenital. This is because the descent of man from man is not like the derivation of man from dust. Dust was raw material from the making of man, but in the beginning of a human being man is apparent.