The testimony of the lines- Ille velut fidis Arcana sodalibus olim, etc.
"The Roman Poets of the Republic"
W. Y. Sellar
Producing secret keys, he exhibited those Arcana, of the inner rooms which apparently are not for sale but which are kept solely for the purpose of dazzling the imagination: jade Buddhas, contemplative and priceless, locked in wonderful Burmese cabinets, strange ornaments of brass and perfume-burners from India, mandarin robes of peacock-blue, and tiny caskets of that violet lacquering which is one of the lost arts of Japan.
"The Orchard of Tears"
Sax Rohmer
His work entitled Arcana Atheismi Revelata, Rotterdam 1676, was denounced as written in bad faith.
"A Biographical Dictionary of Freethinkers of All Ages and Nations"
Joseph Mazzini Wheeler