A hair divides what is false and true.

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

He who has one enemy shall meet him everywhere.

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.

Better be jocund with the fruitful Grape Than sadden after none, or bitter, Fruit.

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.

Living Life Tomorrow's fate, though thou be wise, Thou canst not tell nor yet surmise; Pass, therefore, not today in vain, For it will never come again.