For those for whom the sex act has come to seem mechanical and merely the meeting and manipulation of body parts, there often remains a hunger which can be called metaphysical but which is not recognized as such, and which seeks satisfaction in physical danger, or sometimes in torture, suicide, or murder.
Marshall McLuhanExcept for light, all other media come in pairs, with one acting as the "content" of the other, obscuring the operation of both.
Marshall McLuhanFor the satiated, both sex and speed are pretty boring until the element of danger and even death is introduced.
Marshall McLuhan