Origen 'Contra Celcus'

When false witnesses testified against our Lord and Saviour Jesus Christ He remained silent; and when unfounded charges were brought against Him He returned no answer believing that His whole life and conduct among the Jews were a better refutation than any answer to the false testimony or than any formal defence against the accusations. And I know not my pious Ambrosius why you wished me to write a reply to the false charges brought by Celsus against the Christians and to his accusations directed against the faith of the Churches in his treatise; as if the facts themselves did not furnish a manifest refutation and the doctrine a better answer than any writing seeing it both disposes of the false statements and does not leave to the accusations any credibility or validity.