  An implication of the spontaneous chiral symmetry breaking in QCD is that at
low energy and resolution there appear quasiparticles - constituent quarks and
Goldstone bosons. Thus, light and strange baryons should be considered as
systems of three constituent quarks with confining interaction and a chiral
interaction that is mediated by Goldstone bosons between the constituent
quarks. We show how the flavor-spin structure and sign of the short-range part
of the Goldstone boson exchange interaction reduces the $SU(6)_{FS}$ symmetry
down to $SU(3)_F \times SU(2)_S$, induces hyperfine splittings and provides
correct ordering of the lowest states with positive and negative parity. We
present a unified description of light and strange baryon spectra calculated in
a semirelativistic framework. It is demonstrated that the same short-range part
of Goldstone boson exchange also induces strong short-range repulsion in $NN$
system when the latter is treated as $6Q$ system. Thus, all main ingredients of
$NN$ interaction are implied by the chiral constituent quark model since the
long- and intermediate-range attraction appears in the present framework due to
pion and correlated two-pion exchanges between quarks belonging to different
nucleons. We also find a very strong short-range repulsion in $\Lambda\Lambda$
system with $J^P=0^+$. It then suggests that the compact H-particle should not
exist.
