Since by definition essences do not change, they can have no obvious causal
effect in the world of change; an unmoving billiard ball does cause another ball
to move, only a moving one does.
Essences are therefore metaphysical notions unrelated to the endeavor to understand causality in the phenomenal world.
In slightly different terms, Wittgenstein suggests that "a wheel that can be turned though nothing else moves with it, is not part of the mechanism." (Philosophical Investigations, 271).
Essences are therefore metaphysical notions unrelated to the endeavor to understand causality in the phenomenal world.
In slightly different terms, Wittgenstein suggests that "a wheel that can be turned though nothing else moves with it, is not part of the mechanism." (Philosophical Investigations, 271).
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