Date: 1748, 1754

"The sensible Beauty, or Good, is refined from its Dross by partaking of the Moral, and the Moral receives a Stamp, a visible Character and Currency from the Sensible."

— Fordyce, David (bap. 1711, d. 1751)

Date: 1902

"If it were otherwise, no one could even set down on paper a closely reasoned argument, for the attention would be skipping like a stone hurrying down a sharp incline, or it would be moving hither and thither like a helpless shuttlecock at the mercy of eager players."

— Spiller, Gustav (1864-1940)