Evidence Record

Evidence summary

The scholarly entry treats the four rules in Discourse II as a highly compressed summary of a larger method and emphasizes Descartes's view that method consists more in practice than theory.

Exact claim supported or contradicted

Supports the failure-mode claim that memorable rule compression can omit the practice needed for successful application.

Source provenance

Peer-reviewed Stanford Encyclopedia of Philosophy entry with primary-text and scholarly citations.

Relevant excerpt or data

Sections on the four rules state that no theory can prepare an investigator for every problem and that Descartes shifted toward application rather than an exhaustive codification.

Interpretation

The visible four-rule surface is not the whole functional method. Responsible transfer must include practice, examples, and domain limits.

Limitations

Historical-philosophical interpretation does not test modern learners or the 1853 translation.

Counterevidence

Compression can still provide orientation and memory support; the source challenges sufficiency, not all usefulness.

Reproduction or verification notes

Verify the entry's §§3–4 and cited letter to Mersenne before making stronger claims about Descartes's intent.