Notwithstanding I acknowledge the schoolmen ingenious: they conceive their principles irregular, and prescribe rules for method, though they want mat… - Thomas Vaughan

I have, Reader — and, I suppose, it is not unknown to thee — within these few years, in several little treatises, delivered my judgment of philosophy. I say, of philosophy, for alchemy — in the common acceptation, and as it is a torture of metals — I did never believe: much less did I study it.

The long confusion of Eugenius Philalethes — otherwise Thomas Vaughan — with the anonymous cosmopolite adept, Eirenaeus Philalethes, who is said to have accomplished the Magnum Opus at the age of twenty-two, and to have subsequently wandered over a large portion of the habitable globe, performing astounding transmutations under various names and disguises, has cast so much doubt upon the history and identity of the Welsh initiate, that it will be best to present the reader with certain verbatim citations from the chief authority concerning him, which is the Athena of Anthony k Wood.

That I should profess magic in this discourse and justify the professors of it withal is impiety with many but religion, with me. It is a conscience that I have learned from authors greater than myself and scriptures greater than both.