Note: For a definition of unfamiliar terms, see our glossary. The fundamental particles of the universe that physicists have identified—electrons, neutrinos, quarks, and so on—are the "letters ...

The final decade of his life spent pursuing a theory of everything ended in severe damage to his legacy. The generation of the physicist Richard Feynman (1918–88), following that of Einstein and ...

String theory is perhaps the most high-profile candidate for what physicists call a theory of everything – a single mathematical framework capable of describing the entirety of the known universe.

This theory is often referred to as a "theory of everything". In particular this ... Glashow), has called a theory of all four forces "a final theory." When physicists find this theory, he and ...