You can achieve your purpose merely by looking on. That is how men of distinction play polo.
—Kai Ka'us ibn Iskandar
This statement, from a book written in 1090 in Ancient Persia, should indicate at once that this book is a practical guide of conduct. In 1096, Kai Ka'us ibn Iskandar, Prince of Gurgan, aged 63, wrote a guide for his favorite son and probable successor. This guide, according to Reuben Levy1 of Cambridge, who translated it, was a "mirror for princes," a practical philosophy of life to "warn against the pitfalls on life's journey and to direct him in a path likely to lead to greatest benefits." Expediency was its motto. It is a textbook of ethics, a manual of politics, and even medicine. It contains for the dermatologist some suggestions for the practice of dermatology. The old prince had a liking for medicine. "It is a
GOLDMAN L. Quabus Nama: Advice for Persia XIC for the Dermatologist. Arch Dermatol. 1962;86(2):232–233. doi:10.1001/archderm.1962.01590080102015
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