Date: 1673

" For tho the adulterations of art, can represent in the same Face beauty in one position, and deformity in another, yet nature is more sincere, and never meant a serene and clear forhead, should be the frontispiece to a cloudy tempestuous heart."

— Allestree, Richard (1611/2-1681)

Date: 1681

The Law of Nature has often been "described and discoursed in metaphorical and allusive Expressions, such as Engravings, and Inscriptions, and the Tables of the Heart."

— Parker, Samuel (1640-1688)

Date: 1697

"If we shou'd observe Pythagoras his Rule, to call our selves to an account every Evening, for the Actions and Thoughts of that Day, I believe we shou'd find many vacant spaces within the compass of a Day, which we cou'd not fill up with Thoughts."

— Burnet, Thomas (c.1635-1715)