Ray Bradbury said this quote

It was one of those things they keep in a jar in the tent of a sideshow on the outskirts of a little, drowsy town. One of those pale things drifting in alcohol plasma, forever dreaming and circling, with its peeled, dead eyes staring out at you and never seeing you. It went with the noiselessness of late night, and only the crickets chirping, the frogs sobbing off in the moist swampland. One of those things in a big jar that makes your stomach jump as it does when you see a preserved arm in a laboratory vat.