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Logic is the science not of external forms of thought, but of the laws of development "of all material, natural and spiritual things", i.e., of the development of the entire concrete content of the world and of its cognition, i.e., the sum-total, the conclusion of the History of knowledge of the world.

Logic is the science not of external forms of thought, but of the laws of development "of all material, natural and spiritual things", i.e., of the development of the entire concrete content of the world and of its cognition, i.e., the sum-total, the conclusion of the History of knowledge of the world.

Approximate author period: c. 1897 AD · industrial

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Attribution & collection notes
Author or tradition
Vladimir Lenin
Attribution: attributed
Country attributed
Not established
A country attribution does not establish the earliest origin.
Historical period
Approximate author period: c. 1897 AD · industrial
Approximate period for the recorded attribution to Vladimir Lenin, based on documented lifetime 1870 to 1924. Source: https://www.wikidata.org/wiki/Q1394 (checked 2026-10-08). This is not a quotation composition date or independent authentication of its attribution. Source: https://www.wikidata.org/wiki/Q1394 (accessed 2026-10-08).
An author lifetime, approximate period or collection date is not necessarily the date when these words were first written or spoken.
Recorded source
Contributor-provided quotation collection

Supplied reference C; CSV row 313371; supplied attribution, independently unverified

A collection's publication date can be later than the words it records.