  A classical Lagrangian model of the Pauli potential is introduced. It is
shown that the kinematic kinetic energy ($\sum \frac{1}{2} m v^2$) in the model
approximately reproduces the energy of a free Fermi gas at low temperatures and
at densities relevant in nuclear collisions with moderate beam energies.
Differences between canonical and kinematic quantities are pointed out. The
Pauli potential can be used in transport simulations.
