It is, moreover, in a very unphilosophical spirit that Celsus imagines our Lord's pre-eminence among men to consist, not in the preaching of salvation and in a pure morality, but in acting contrary to the character of that personality which He had taken upon Him, and in not dying, although He had assumed mortality; or, if dying, yet at least not such a death as might serve as a pattern to those who were to learn by that very act how to die for the sake of religion, and to comport themselves boldly through its help, before those who hold erroneous views on the subject of religion and irreligion, and who regard religious men as altogether irreligious, but imagine those to be most religious who err regarding God, and who apply to everything rather than to God the ineradicable idea of Him (which is implanted in the human mind), and especially when they eagerly rush to destroy those who have yielded themselves up with their whole soul (even unto death), to the clear evidence of one God who is over all things.
Source: Against Celsus (New Advent)