By the help of God and with His precious assistance, I say that Algebra is a scientific art. The objects with which it deals are absolute numbers and measurable quantities which, though themselves unknown, are related to "things" which are known, whereby the determination of the unknown quantities is possible.
Omar KhayyamAlgebras (jabbre and maqabeleh) are geometric facts which are proved by propositions five and six of Book two of Elements.
Omar KhayyamSo I be written in the Book of Love. I do not care about that Book Above. Erase my name, or write it as you will. So I be written in the Book of Love.
Omar Khayyam