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idealism

idealism Idealism is a philosophical position that treats mind or reason as the basic principle of reality.

Idealism is a philosophical position that treats mind or reason as the basic principle of reality. In one sense, it says the universe is fundamentally an expression of reason or spirit; in another, it holds that the external world is real as something that can be perceived, in contrast with realism.

Also see

Sources

Drafting source: Baldwin Dictionary of Philosophy and Psychology, 1901. 1901 New York Macmillan original; archive index checked 2026-10-18. “Idealism” (Idealism).
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PsychTerms (psychterms.org), CC BY 4.0, version 1. “idealism.” Development preview.

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