You know, my friends, with what a brave carouse I made a Second Marriage in my house; favored old barren reason from my bed, and took the daughter of the vine to spouse.

Myself when young did eagerly frequent doctor and saint, and heard great argument about it and about: but evermore came out by the same door as in I went.

In monasteries, seminaries, retreats and synagogues, they fear hell and seek paradise. Those who know the mysteries of God never let that seed be planted in their souls.

Why ponder thus the future to foresee, and jade thy brain to vain perplexity? Cast off thy care, leave Allah’s plans to him – He formed them all without consulting thee.

When I want to understand what is happening today or try to decide what will happen tomorrow, I look back.

I hide my grief, just like the blessed birds hide themselves when they are preparing to die, my love.

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.