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1. One Substance, Infinite Expressions
Baruch Spinoza taught that all things are expressions (modes) of a single infinite reality he called God or Nature (Deus sive Natura). Nothing exists outside of it.
2. God as the Cause of Itself
God alone is causa sui — the cause of itself. God’s very essence involves existence, so its cause and effect are identical. In everything else, cause and effect are partial expressions of that one self-causing substance.
3. Necessary, Not Contingent, Causation
Everything follows from God’s nature with logical necessity, the way conclusions follow from axioms. Events don’t occur “in time” for God; they unfold eternally within one coherent order.
4. Thought and Extension
Reality shows itself in two main ways (attributes):
- Thought – the order of ideas
- Extension – the order of physical bodies
Each runs in perfect parallel. Every mental cause-effect pair corresponds to a physical one; they are two aspects of the same process.
5. Equality of Cause and Effect
Only in God/Nature do cause and effect truly equal one another. In finite things, they are distinct expressions within the same whole — ripples on one ocean.
6. Essence of Spinoza’s View
“From the necessity of the divine nature there must follow infinitely many things in infinitely many ways.” (Ethics, I, Prop. 16)
In brief:
All causes and effects are the self-unfolding of one infinite substance. The universe is God thinking and acting through every mode.
Baruch Spinoza, also known under his Latinized pen name Benedictus de Spinoza (Noember 24, 1632 – February 21, 1677) , was a philosopher of Portuguese-Jewish origin, who was born in the Dutch Republic. Wikipedia