Date: 1686, 1689, 1697

"Let us but consider a little the Receptacles of Images, the Regions of Imagination, the curious formation in all the Instruments of Sense; to which we may add the activity and subtlety of the Spirits, the delicate Contexture of the Nerves, the various Articulations of the Voice, the Harmony of F...

— Nourse, Timothy (c.1636–1699)

Date: 1690, 1694, 1695, 1700, 1706

"For, though he that contemplates the Operations of his Mind, cannot but have plain and clear Ideas of them; yet unless he turn his Thoughts that way, and considers them attentively, he will no more have clear and distinct Ideas of all the Operations of his Mind, and all that may be observed ther...

— Locke, John (1632-1704)