Date: 1763 (repr. 1776); 1794 (repr. 1799)

"When a train of ideas is very familiar to the mind, they often follow one another in the memory without any laborious recollection, and so as to arise almost instantaneously and mechanically; as in writing, singing, &c. the traces between them being worn like beaten roads."

— Doddridge, Philip (1702-1751)