"Only that thing is free which exists by the necessities of its own nature, and is determined in its actions by itself alone"
About this Quote
The subtext is confrontational: most of what people call freedom is just ignorance of the forces moving them. If your desires are triggered by appetite, habit, fear, or social pressure, you may experience choice, but you are being determined from the outside. Spinoza’s “necessities” aren’t shackles; they’re the internal logic of a being. Paradoxically, necessity becomes the criterion of liberty. The freer you are, the less arbitrary you are.
Context matters. Spinoza is writing in the 17th-century Dutch Republic, amid religious sectarianism and the rising prestige of mechanistic science. He watches a world explaining nature without miracles and politics without divine permission, and he builds a metaphysics where everything follows from one substance (God or Nature) with strict determinism. Within that system, “self-determined” doesn’t mean exempt from causality; it means your actions express adequate understanding rather than reactive emotion.
The rhetorical trick is the reversal: freedom isn’t escape from determination, it’s ownership of it. Spinoza turns liberation into a cognitive achievement - becoming the cause of yourself, insofar as a finite creature can.
Quote Details
| Topic | Free Will & Fate |
|---|---|
| Source | Help us find the source |
| Cite |
Citation Formats
APA Style (7th ed.)
Spinoza, Baruch. (2026, January 17). Only that thing is free which exists by the necessities of its own nature, and is determined in its actions by itself alone. FixQuotes. https://fixquotes.com/quotes/only-that-thing-is-free-which-exists-by-the-69854/
Chicago Style
Spinoza, Baruch. "Only that thing is free which exists by the necessities of its own nature, and is determined in its actions by itself alone." FixQuotes. January 17, 2026. https://fixquotes.com/quotes/only-that-thing-is-free-which-exists-by-the-69854/.
MLA Style (9th ed.)
"Only that thing is free which exists by the necessities of its own nature, and is determined in its actions by itself alone." FixQuotes, 17 Jan. 2026, https://fixquotes.com/quotes/only-that-thing-is-free-which-exists-by-the-69854/. Accessed 10 Feb. 2026.









