The Perception of a Rose

When I smell a rose, there is in this operation both sensation and perception. The agreeable odor I feel, considered by itself without relation to any external object, is merely a sensation. It affects the mind in a certain way; and this affection of the mind may be conceived without a thought of the rose, or any other object. This sensation can be nothing else than it is felt to be. Its very essence consists in being felt, and, when it is not felt, it is not. There is no difference between t...