Whatever is fitted in any sort to excite the ideas of pain, and danger, that is to say, whatever is in any sort terrible, or is conversant about terrible objects, or operates in a manner analogous to terror, is a source of the sublime; that is, it is productive of the strongest emotion which the mind is capable of feeling .... When danger or pain press too nearly, they are incapable of giving any delight, and [yet] with certain modifications, they may be, and they are delightful, as we every day experience.