  In this talk, I demonstrate that the proposed Electron-Ion Collider (EIC)
will be an ideal and unique future facility to address many overarching
questions about QCD and strong interaction physics at one place. The EIC will
be the world's first polarized electron-proton (and light ion), as well as the
first electron-nucleus collider at flexible collision energies. With its high
luminosity and beam polarization, the EIC distinguishes itself from HERA and
the other fixed target electron-hadron facilities around the world. The EIC is
capable of taking us to the next QCD frontier to explore the glue that binds us
all.
