  We propose a model that all quark and lepton mass matrices originally have
the same zero texture. Namely their (1,1), (1,3) and (3,1) components are
zeros. For the neutrino mass matrix, we further impose the symmetry between the
second and the third generations. Then the neutrino mass matrix has a maximal
(\nu_\mu) - (\nu_\tau) mixing. Our model is consistent with all the neutrino
oscillation experiments and the experimental data in the quark sector too. The
neutrino mass matrix can also be well incorporated with the seesaw mechanism.
