"Also those phenomena in nature which depend upon gravity, electricity, &c. are no less various and complex; and the more we know of nature, the more particular facts, and particular laws, we are able to reduce to simple and general laws: insomuch that now it does not appear impossible, but that, ultimately, one great comprehensive law shall be found to govern both the material and intellectual world."
Hartley's Theory of the Human Mind, on the Principle of the Association of Ideas; with Essays Relating to the Subject of It
At least 4 entries in ECCO and ESTC (1775, 1776, 1790).<br>
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See <u>Hartley’s Theory of the Human Mind, on the Principle of the Association of Ideas; With Essays Relating to the Subject of It. By Joseph Priestley, LL. D. F. R. S.</u> (London: Printed for J. Johnson, No. 72, St. Paul’s Church-Yard, 1775). &lt;<a href="http://estc.bl.uk/T141560">Link to ESTC</a>&gt;