In quantum mechanics, the Pauli exclusion principle states that two or more identical particles with half-integer spins (i.e. fermions) cannot occupy the same quantum state within a quantum system simultaneously.
Edward Conze (Wikipedia) Edward Conze, born Eberhard Julius Dietrich Conze (18 March 1904 Forest Hill–1979), was a scholar of Marxism and Buddhism, known primarily for his commentaries and translations of the Prajñāpāramitā literature.