  I introduce a simple phenomenological model of lepton flavor mixing and CP
violation based on the flavor democracy of charged leptons and the mass
degeneracy of neutrinos. The nearly bi-maximal mixing pattern, which can
interpret current data on atmospheric and solar neutrino oscillations, emerges
naturally from this model. The rephasing-invariant strength of CP or T
violation amounts to about one percent and could be measured in the
long-baseline neutrino experiments. The similarity and difference between
lepton and quark flavor mixing phenomena are also discussed.
