The Pythagoreans called the **monad** "intellect" because they thought that intellect was akin to the One; for among the virtues, they likened the **monad** to moral wisdom; for what is correct is one. And they called it "being," "cause of truth," "simple," "paradigm," "order," "concord," "what is equal among the greater and the lesser," "the mean between intensity and slackness," "moderation in plurality," "the instant now in time," and moreover they call it "ship," "chariot," "friend," "life," "happiness."

— On the Monad

A pair of statements may be taken conjunctively or disjunctively; for example, "It lightens and it thunders ," is conjunctive, "It lightens or it thunders" is disjunctive. Each such individual act of connecting a pair of statements is a new **monad** for the mathematician .

— p. 268 (Mathematical Monads (1889))

In the metaphor of arithmetic , the dyad reveals itself as the door between the One and the Many, between **monad** and all other numbers.

— Priya Hemenway in

If the potential of every number is in the **monad** , then the **monad** would be intelligible number in the strict sense, since it is not yet manifesting anything actual, but everything conceptually together in it.

— Iamblichus (c. 245 - c. 325)

He ordained that his disciples should speak well and think reverently of the Gods, muses and heroes, and likewise of parents and benefactors; that they should obey the laws; that they should not relegate the worship of the Gods to a secondary position, performing it eagerly, even at home; that to the celestial divinities they should sacrifice uncommon offerings; and ordinary ones to the inferior deities. (The world he Divided into) opposite powers; the "one" was a better **monad** , light, right, equal, stable and straight; while the "other" was an inferior duad , darkness, left, unequal, unstable and movable.

— Porphyry of Tyre, in "The Life of Pythagoras" as translated by Kenneth Sylvan Guthrie in

The Pythagoreans called the **monad** " intellect " because they thought that intellect was akin to the One; for among the virtues , they likened the **monad** to moral wisdom ; for what is correct is one. And they called it " being ," "cause of truth ," " simple ," "paradigm," " order ," " concord ," "what is equal among the greater and the lesser," "the mean between intensity and slackness," " moderation in plurality," "the instant now in time ," and moreover they call it " ship ," "chariot," " friend ," " life ," " happiness ."

— Iamblichus of Chalcis, in

Neither the circle without the line, nor the line without the point, can be artificially produced. It is, therefore, by virtue of the point and the **monad** that all things commence to emerge in principle. That which is affected at the periphery, however large it may be, cannot in any way lack the support of the central point.

— Theorem II (Monas Hieroglyphica (1564))

Therefore, the central point which we see in the centre of the hieroglyphic **monad** produces the Earth , round which the Sun , the Moon , and the other planets follow their respective paths. The Sun has the supreme dignity , and we represent him by a circle having a visible centre.

— Theorem III (Monas Hieroglyphica (1564))

We finish the brief hieroglyphic consideration of our **monad**, which we would sum up in one only hieroglyphic context: The Sun and the Moon of this **monad** desire that the Elements in which the tenth proportion will flower, shall be separated, and this is done by the application of Fire.

— Theorem X (Monas Hieroglyphica (1564))