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 KhayyamThis body is a tent which for a space Does the pure soul with kingly presence grace; When he departs, comes the tent-pitcher, Death, Strikes it, and moves to a new halting-place.
Omar Khayyam