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Work #201 · Mid (the major early work; foundational for both psychology and pragmatist philosophy)

The Principles of Psychology

William James
1890 (after twelve years of writing; James later said he should not have spent so much time on it) · English
Two-volume systematic treatise in twenty-eight chapters · American pragmatism / scientific psychology / philosophy of mind

The stream of thought, the will, habit, emotion, attention — James's 1890 founding synthesis of scientific psychology with philosophical anthropology

Attribute Fingerprint

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

Attribute The Principles of Psychology (Mid (the major early work; foundational for both psychology and pragmatist philosophy))
Time · Extent Infinite
Time · Ontological Status Relational
Time · Grain Continuous
Time · Freedom Non-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 Substantival
Matter · Conservation Conserved
Matter · Dimensionality Three
Matter · Locality Local
Observer · Time Instance Single
Observer · Space Instance Single
Observer · Knowledge Extent Partial
Observer · Knowledge Retainment Total
Observer · Physicality Embodied
Observer · Agency Both
Observer · Number Plural
Observer · Metaphysical Agency None
Observer · Moral Authority Experience
Observer · Theological Method
Energy · Extent Infinite
Energy · Ontological Status Substantival
Energy · Conservation Conserved
Energy · Dispersibility Irreversible
Information · Ontological Status Substantival
Information · Cosmic Conservation Conserved
Information · Personal Conservation Conserved
Information · Granularity Continuous

Dimension-by-Dimension Evidence

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

Time

The Principles of Psychology

Subjective time as the temporal structure of the stream of thought; the famous chapter on the "specious present" — duration as the phenomenological now.

Space

The Principles of Psychology

The phenomenological space of perception; physical space as known through the embodied observer.

Matter

The Principles of Psychology

The brain and body as the substrate of mental life; the James-Lange theory of emotion grounds emotion in bodily response.

Observer

The Principles of Psychology

The conscious human as the central observer — embodied, plural, both active and passive in the stream of consciousness. No metaphysical framework imposed.

Energy

The Principles of Psychology

The energies of will, attention, habit, emotion — analysed scientifically and phenomenologically.

Information

The Principles of Psychology

The continuous stream of conscious information; preserved through memory, shaped by attention and habit.

Internal Tensions

Where each work's argument pulls against itself.

The Principles of Psychology

James himself later regretted spending twelve years on the Principles — he came to see it as too much a compromise between scientific psychology and philosophical psychology. The relation between James's descriptive method and the more experimental psychology that emerged in the twentieth century (Wundt, behaviourism) is itself a continuing question. The relation between the Principles' broadly naturalist framework and James's later, more metaphysically venturesome work (the Varieties of Religious Experience, Pluralistic Universe) is the central interpretive theme of James scholarship.