"That whose existence is necessary must necessarily be one essence"
About this Quote
The intent is theological, but the method is philosophically surgical. Avicenna is building his famous distinction between the necessary existent (wajib al-wujud) and everything else that merely happens to be. “One essence” functions as a kind of ontological minimalism: the necessary being has no internal seams, no admixture of essence and existence the way contingent things do. In his system, that rules out not only plurality but also the idea that God could be a bundle of attributes the way creatures are. Divine attributes become, awkwardly and elegantly, identical with the divine essence.
The subtext is polemical: this is a preemptive strike against rival theologies that multiply eternal principles, against cosmologies with competing ultimates, and against any metaphysics that treats “necessary” as a superpowered version of ordinary existence. Contextually, Avicenna is translating Greek metaphysical machinery (Aristotle filtered through late antique Neoplatonism) into an Islamic intellectual world hungry for rigor. The line works because it turns piety into an inference: unity isn’t proclaimed, it’s derived.
Quote Details
| Topic | Reason & Logic |
|---|---|
| Source | Help us find the source |
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APA Style (7th ed.)
Avicenna. (2026, January 16). That whose existence is necessary must necessarily be one essence. FixQuotes. https://fixquotes.com/quotes/that-whose-existence-is-necessary-must-115357/
Chicago Style
Avicenna. "That whose existence is necessary must necessarily be one essence." FixQuotes. January 16, 2026. https://fixquotes.com/quotes/that-whose-existence-is-necessary-must-115357/.
MLA Style (9th ed.)
"That whose existence is necessary must necessarily be one essence." FixQuotes, 16 Jan. 2026, https://fixquotes.com/quotes/that-whose-existence-is-necessary-must-115357/. Accessed 12 Feb. 2026.






