Date: September, 1770

"This double feeling is of various kinds and various degrees; some minds receiving a colour from the objects around them, like the effects of the sun beams playing thro' a prism; and others, like the cameleon, having no colours of their own, take just the colours of what chances to be nearest them."

— Boswell, James (1740-1795)

Date: 1774

"Penetration implies such a force of imagination as leads to the comprehension and explication of a subject: brightness of imagination fits a man for adorning a subject. A penetrating mind emits the rays by which truth is discovered: a bright fancy supplies the colours by which beauty is produced."

— Gerard, Alexander (1728-1795)