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Secretum Secretorum

The Secretum Secretorum or Secreta Secretorum (Latin, 'Secret of secrets'), also known as the Sirr al-Asrar (Arabic: كتاب سر الأسرار, lit.'The Secret Book of Secrets'), is a treatise which purports to be a letter from Aristotle to his student Alexander the Great on an encyclopedic range of topics, including statecraft, ethics, physiognomy, astrology, alchemy, magic, and medicine.

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