Full Idea
I have discovered that all the sciences which have as their aim the search for order and measure are related to mathematics.
Gist of Idea
All the sciences searching for order and measure are related to mathematics
Source
René Descartes (Rules for the Direction of the Mind [1628], 04)
Book Reference
Descartes,René: 'Rules for the Direction of the Mind' [Newcomb Library 2023], p.16
A Reaction
Note that he sound a more cautious note than Galileo's famous remark. It leaves room for biology to still be a science, even when it fails to be mathematical.