Authors:

Theories of genius are the peculiar constructions of our own philosophical times; ages of genius had passed away, and they left no other record than their works; no preconcerted theory described the workings of the imagination to be without imagination, nor did they venture to teach how to invent invention.

"The Literary Character, Illustrated by the History of Men of Genius". Book by Isaac D'Israeli, 1795 - 1822.
Theories of genius are the peculiar constructions of our own philosophical times; ages of genius had passed away, and they left no other record than their works; no preconcerted theory described the workings of the