40 But He died nailed to the cross. What is that to the argument? For neither does the kind and disgrace of the death change His words or deeds, nor will the weight of His teaching appear less; because He freed Himself from the shackles of the body, not by a natural separation, but departed by reason of violence offered to Him. Pythagoras of Samos was burned to death in a temple, under an unjust suspicion of aiming at sovereign power. Did his doctrines lose their peculiar influence, because he breathed forth his life not willingly, but in consequence of a savage assault?
In like manner Socrates, condemned by the decision of his fellow citizens, suffered capital punishment: have his discussions on morals, on virtues, and on duties been rendered vain, because he was unjustly hurried from life? Others without number, conspicuous by their renown, their merit, and their public character, have experienced the most cruel forums of death, as Aquilius, Trebonius, and Regulus: were they on that account adjudged base after death, because they perished not by the common law of the fates, but after being mangled and tortured in the most cruel kind of death?
No innocent person foully slain is ever disgraced thereby; nor is he stained by the mark of any baseness, who suffers severe punishment, not from his own deserts, but by reason of the savage nature of his persecutor.
Source: Against the Heathen (New Advent)