Full Idea
The doctrine of the association of ideas is, to my thinking, the finest piece of philosophical work of the prescientific ages.
Gist of Idea
Association of ideas is the best philosophical idea of the prescientific age
Source
Charles Sanders Peirce (Concerning the Author [1897], p.2)
Book Reference
Peirce,Charles Sanders: 'Philosophical Writings of Peirce', ed/tr. Buchler,Justus [Dover 1940], p.2