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Work #95 · Late

Critique of Practical Reason

Immanuel Kant
1788 · German
Systematic philosophical treatise · Modern German philosophy / Kantian transcendental idealism

Two things fill the mind with ever new and increasing admiration — the starry heavens above me, and the moral law within me

Attribute Fingerprint

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

Attribute Critique of Practical Reason (Late)
Time · Extent Infinite
Time · Ontological Status Emergent
Time · Grain Continuous
Time · Freedom Both
Time · Traversability Linear
Time · Dimensionality One
Time · Direction Uni-directional
Space · Extent Infinite
Space · Ontological Status Emergent
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 Multiple
Observer · Space Instance Single
Observer · Knowledge Extent Immediate
Observer · Knowledge Retainment Total
Observer · Physicality Both
Observer · Agency Active
Observer · Number Plural
Observer · Metaphysical Agency Personal
Observer · Moral Authority Reason
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

Critique of Practical Reason

Within phenomenal time, the moral agent acts; the noumenal self is free in a way that does not violate phenomenal causal closure. The famous compatibilism of the two standpoints.

Space

Critique of Practical Reason

Standard Kantian treatment as form of intuition.

Matter

Critique of Practical Reason

Sensible matter is the field of moral action; noumenal reality is the locus of freedom. Relational in the precise Kantian sense.

Observer

Critique of Practical Reason

The Kantian observer is the rational agent — phenomenally embodied, noumenally free, plural at the empirical level, ideally autonomous. Moral authority is pure practical reason. Metaphysical agency (God) is a postulate.

Energy

Critique of Practical Reason

Not engaged in the moral philosophy directly.

Information

Critique of Practical Reason

The moral law is the substantival a priori informational structure of practical reason. Personal immortality is a postulate.

Internal Tensions

Where each work's argument pulls against itself.

Critique of Practical Reason

The relation between the second Critique's postulates and the first Critique's denial of speculative theology has been the central interpretive question. Hegel criticised the postulates as inadequate; later Kantians (Rawls, O'Neill) read them as deliberately limited practical commitments.