The principle of invariance of the c-number symmetric bracket is used to
derive both the quantum operator commutator relation [q^,p^]=iℏ
and the time-dependent Schr\"odinger equation. A c-number dynamical equation is
found which leads to the second quantized field theory of bosons and fermions.Comment: 14 pages. Contributed Paper: XIX International Symposium on Lepton
and Photon Interactions at High Energies, Stanford University, August 9-14,
199