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orthogenesis

orthogenesis Orthogenesis is the historical idea that evolution proceeds along fixed, predetermined lines because of an internal life principle, rather than being chiefly shaped by environmental selection.

Orthogenesis is the historical idea that evolution proceeds along fixed, predetermined lines because of an internal life principle, rather than being chiefly shaped by environmental selection. In this view, natural selection is only secondary to a built-in direction of organic change.

Also see

Sources

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

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