Others, that some original shape, or form
Shaped by decay perchance, hath given the power
(Though less than that of Memnon’s statue, warm
In Egypt’s rays, to harp at a fixed hour)
To this grey ruin: with a voice to charm,
Sad, but serene, it sweeps o’er tree or tower;
The cause I know not, nor can solve; but such
The fact:—I’ve heard it—once perhaps too much.