The proceedings of the 20th annual Montreal-Rochester-Syracuse-Toronto
conference on high energy theory provide an overview of recent advances in
elementary particle theory, including gravitation, collider physics, heavy quark
systems, physics beyond the Standard Model, 2-d field theories, technicolor,
supersymmetry, and string theory. The common thread linking these ideas is the
quest for a fundamental, unified theory, sometimes called "the theory of
everything." MRST is unique in providing an overview of the exciting advances
toward this ultimate theory from diverse directions, yet in a concise volume
whose contributions are meant to be accessible to a general particle physics
audience.