The authenticity of the quote has occasionally been disputed, but without reason.
Even if its authenticity be undoubted.
His defence of the authenticity of the Epistles of Ignatius is one of the most important contributions to that very difficult controversy.
How can he establish authenticity selling health products while he's smoking those things?
The authenticity of his list of 10 antediluvian kings who reigned for 120 sari or 432,000 years, has been partially confirmed by the inscriptions; but his 8 postdiluvian dynasties are difficult to reconcile with the monuments, and the numbers attached to them are probably corrupt.