  Physics of the low-lying and high-lying hadrons in the light flavor sector is
reviewed. While the low-lying hadrons are strongly affected by the spontaneous
breaking of chiral symmetry, in the high-lying hadrons the chiral symmetry is
restored. A manifestation of the chiral symmetry restoration in excited hadrons
is a persistence of the chiral multiplet structure in both baryon and meson
spectra. Meson and baryon chiral multiplets are classified. A relation between
the chiral symmetry restoration and the string picture of excited hadrons is
discussed.
