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Work #19 · Late

An Enquiry Concerning Human Understanding

David Hume
1748 (first published as Philosophical Essays Concerning Human Understanding) · English
Philosophical essays in twelve sections · British empiricism / Scottish Enlightenment

All knowledge starts from impressions; causation is custom, not necessary connection; reason is and ought to be the slave of the passions

Attribute Fingerprint

Rows where works disagree are highlighted in gold. The full ontology grid is shown.

Attribute An Enquiry Concerning Human Understanding (Late)
Time · Extent Infinite
Time · Ontological Status Relational
Time · Grain Continuous
Time · Freedom Deterministic
Time · Traversability Linear
Time · Dimensionality One
Time · Direction Uni-directional
Space · Extent Infinite
Space · Ontological Status Relational
Space · Curvature Flat
Space · Dimensionality Three
Space · Locality Local
Matter · Extent Infinite
Matter · Ontological Status Relational
Matter · Conservation Conserved
Matter · Dimensionality Three
Matter · Locality Local
Observer · Time Instance Single
Observer · Space Instance Single
Observer · Knowledge Extent Immediate
Observer · Knowledge Retainment Immediate
Observer · Physicality Embodied
Observer · Agency Both
Observer · Number Plural
Observer · Metaphysical Agency None
Observer · Moral Authority Experience
Observer · Theological Method
Energy · Extent Finite
Energy · Ontological Status Substantival
Energy · Conservation Conserved
Energy · Dispersibility Irreversible
Information · Ontological Status Relational
Information · Cosmic Conservation Non-conserved
Information · Personal Conservation Non-conserved
Information · Granularity Discrete

Dimension-by-Dimension Evidence

What each work's passages reveal about its stance on each of the six dimensions.

Time

An Enquiry Concerning Human Understanding

Time is the framework within which one impression follows another. There are no synthetic a priori truths about temporal order; we observe sequences and form expectations by custom. Hume's analysis of causation (sections IV–VII) turns on a temporal relation: cause precedes effect, contiguity, and constant conjunction — but no necessary connection discoverable in any impression.

Space

An Enquiry Concerning Human Understanding

Space is a relational manifold of co-existing impressions, not a Newtonian container. Hume is not formally a Berkeleyan idealist (he doubts both materialism and idealism with roughly equal force), but he gives no support to substantival space.

Matter

An Enquiry Concerning Human Understanding

External objects, on Hume's analysis, are not directly perceived; they are inferences from the regularities of our impressions. Section XII.1 (of academical scepticism) is agnostic about substantial matter while affirming the practical irresistibility of belief in it.

Observer

An Enquiry Concerning Human Understanding

The Humean observer is the bundle-self: there is no simple, substantival "I" discoverable in introspection, only a stream of impressions and ideas associated by custom. Knowledge is immediate (from impressions) and never extends beyond experience. Agency is mixed — Hume's compatibilism in section VIII analyses freedom as the absence of external constraint, not the absence of causation. Metaphysical agency is None: section XI's polite dialogue undermines natural theology, and section X notoriously argues that no testimony for miracles can outweigh the evidence of standing natural law.

Energy

An Enquiry Concerning Human Understanding

Not Hume's topic; the empirical physics of his day is presupposed. Energy in the modern sense was not yet a unified concept in 1748.

Information

An Enquiry Concerning Human Understanding

Information is the patterned succession of impressions, relational and discrete (each impression a distinct perception). Personal information is not conserved across death — Hume's essay "Of the Immortality of the Soul" (published posthumously) argues vigorously against personal immortality, and the Enquiry's naturalism gives no place for it.

Internal Tensions

Where each work's argument pulls against itself.

An Enquiry Concerning Human Understanding

Hume's text alternates between vigorous scepticism (in argument) and equally vigorous endorsement of common-sense belief (in practice). Section V.2 on "sceptical solution" makes the tension explicit: nature has fitted us to believe what reason cannot ground. Critics ever since (Reid, Kant) have asked whether the position is stable; defenders (Strawson, Garrett) argue it captures the actual structure of human cognition.