- How sure this is
- 85% sureThese words were traced back to where they first appeared. That source is listed below.
- What turned up
- Dialogues Concerning Two New Sciences (1638), opening line of the Third Day, on the study of motion; Wikiquote-sourced.
- Work
- Dialogues Concerning Two New Sciences
- Occasion
- 1638 · opening of the Third Day, introducing the study of motion
- Sources checked
- en.wikiquote.orgChecked using claude-sonnet-5, 21 August 2026Sourced section, cited to Two New Sciences (1638), Third Day