Date: 1733

"I have formerly suggested, that the best Similitude I can form of the Nature and Actions of this Principle upon the Organs of its Machin, is that of a skillful Musician playing on a well-tun'd Instrument."

— Cheyne, George (1671-1743)

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

"The power which the mind evidently has of moving the various parts of the body by nerves inserted in the muscles is truly wonderful, seeing the mind neither knows the muscles to be moved, nor the machinery, by which the motion in it is to be produced: so that it is as if a musician should always...

— Doddridge, Philip (1702-1751)