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

Thy Return is as another Sun to Heaven; a new Rose blooming in the Garden of the Soul.

To friends and eke to foes true kindness show; No kindly heart unkindly deeds will do; Harshness will alienate a bosom friend. And kindness reconcile a deadly foe.

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.

The value of three things is justly appreciated by all classes of men: youth, by the old; health, by the diseased; and wealth, by the needy.

This clay, so strong of heart, of sense so fine,Surely such clay is more than half divine--'Tis only fools speak evil of the clay,The very stars are made of clay like mine.

To-day is thine to spend, but not to-morrow; Counting on morrows breedeth bankrupt sorrow: O squander not this breath that Heaven hath lent thee; Make not too sure another breath to borrow.