"The mad prophetic Sibyl you shall find,
Dark in a cave, and on a rock reclin'd.
She sings the fates, and, in her frantic fits,
The notes and names, inscrib'd, to leafs commits.
What she commits to leafs, in order laid,
Before the cavern's entrance are display'd:
Unmov'd they lie; but, if a blast of wind
Without, or vapors issue from behind,
The leafs are borne aloft in liquid air,
And she resumes no more her museful care,
Nor gathers from the rocks her scatter'd verse,
Nor sets in order what the winds disperse.
Thus, many not succeeding, most upbraid
The madness of the visionary maid,
And with loud curses leave the mystic shade."