Indeed the Idols I have loved so long, have done my credit in this World much wrong; have drowned my Glory in a shallow Cup, and sold my Reputation for a Song.

Oh! My beloved! fill the cup, that clears to-day of past regrets and future fears.

Old Khayyám, say you, is a debauchee;If only you were half so good as he!He sins no sins but gentle drunkenness,Great-hearted mirth, and kind adultery.But yours the cold heart, and the murderous tongue,The wintry soul that hates to hear a song,The close-shut fist, the mean and measuring eye,And all the little poisoned ways of wrong.

There was a door to which I found no key: There was the veil through which I might not see.

For in and out, above, about, below, 'Tis nothing but a Magic Shadow-show, Played in a Box whose Candle is the Sun, Round which we Phantom Figures come and go.

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.

Algebras (jabbre and maqabeleh) are geometric facts which are proved by propositions five and six of Book two of Elements.