Warren and Brandeis, “The Right to Privacy”: “These considerations lead to the conclusion that the protection afforded to thoughts, sentiments, and emotions, expressed through the medium of writing or of the arts, so far as it consists in preventing publication, is merely an instance of the enforcement of the more general right of the individual to be let alone.”
This is a seminal article setting out the right of the individual to be left alone, as opposed to privacy from interference from government.