95% sureThese words were traced back to where they first appeared. That source is listed below.
What turned up
Primary text confirmed: Speech in the House of Representatives on Internal Improvements, June 20, 1848 (Collected Works, via Wikisource 'Life and Works of Abraham Lincoln' Vol. 3). Also listed in Wikiquote's Sourced section (not Disputed/Misattributed).
Work
Speech in the House of Representatives, on Internal Improvements
Occasion
1848 · Washington, D.C. · arguing Congress should keep backing hard infrastructure projects instead of giving up on them
Sources checked
en.wikisource.orgChecked using claude-sonnet-5, 21 August 2026primary text fetched: full paragraph confirms exact wording and June 20, 1848 date