"We can never stress enough that the Latin Alchemy of the Latin West owes nothing to the Greeks, to the Arabs it owes more or less everything. For decades we have persisted in studying fragments from the alchemists as if the contents and essence of Latin alchemy could be explained by it... It was not the Greek alchemists but the translations from original Arabic works which paved the way to Western development."

"Why, it was like reading about France and the French, before the ever memorable and blessed Revolution, which swept a thousand years of such villany away in one swift tidal-wave of blood -- one: a set…"

"So long as anyone can speak of divine things, enjoy and understand them, remember and desire them, he has not yet arrived in port; yet there are ways and means to guide him thither. But the creature c…"

"You must know that if a person, who has attained a certain degree of perfection, wishes to impart to others, either orally or in writing, any portion of the knowledge which he has acquired of these su…"

"Pardon me for having praised Origen's zeal for Scriptural learning in my youthful days before I fully knew his heresies; and I will grant you forgiveness for having written an Apology for his works wh…"