  We present expressions of the Pagels--Stokar type for the masses of the W and
Z bosons in terms of the quark and lepton self-energies. By introducing a
genuine new term in the gauge boson--fermion--anti-fermion vertex we manage to
accomplish three main achievements: First, we show that the similar results
existing in literature lead, in general, to a non-symmetric gauge boson mass
matrix and we fix this flaw. Second, we consider the case of any number of
fermion generations with general mixing. Third, we include in our analysis also
an arbitrary number of right-handed neutrinos, together with the left-handed
and right-handed neutrino Majorana masses (self-energies). On top of that, we
give also a correction to the original Pagels--Stokar formula for the pion
decay constant in QCD.
