  The assumptions of the {\it standard model}, which 50 years ago offered an
elegant new step towards understanding basic fermion and boson fields, are
still waiting for an explanation. The {\it spin-charge-family} theory is
promising not only in explaining the {\it standard model} postulates but also
in explaining the cosmological observations, like there are the appearance of
the {\it dark matter}, of the {\it matter-antimatter asymmetry}, making several
predictions. This theory assumes that the internal degrees of freedom of
fermions (spins, handedness and all the charges) are described by the Clifford
algebra objects in $d\ge(13+1)$-dimensional space. Fermions interact with only
the gravity (the vielbeins and the two kinds of the spin connection fields,
which manifest in $d=(3+1)$ as all the vector gauge fields as well as the
scalar fields - the higgs and the Yukawa couplings). The theory describes the
internal space of fermions with the Clifford objects which are products of odd
numbers of $\gamma^a$ objects, what offers the explanation for quantum numbers
of quarks and leptons and anti-quarks and ani-leptons, with family included. In
this talk I overview shortly the achievements of the {\it spin-charge-family}
theory so far and in particular the explanation of the second quantization
procedure offered by the description of the internal space of fermions with the
anticommuting Clifford algebra objects of the odd character. The theory needs
still to answer many open questions that it could be accepted as the next step
beyond the {\it standard model}.
