  In his letter Sabatier writes that my statement {\bf "The Newton-Sabatier
(NS) method for inverting the fixed-energy phase shifts for a potential is
fundamentally wrong"} is erroneous.
  In [2] my statement is proved. It is explained in [2] that the foundations of
the NS method are wrong, and, in particular, that the basic integral equation
of this method, in general is not uniquely solvable for some $r>0$, contrary to
the implicit assumption of the NS method. If this equation is not uniquely
solvable for some $r>0$, then the NS method breaks down: it produces a
potential which is not locally integrable. Consequently, my conclusion was:
{\it the NS theory as an inverse scattering theory is fundamentally wrong in
the sense that its foundations are wrong}. This conclusion is fully justified
in [2]. Additional comments on the Sabatier's letter are given.
