The distinction between Hubble's linear redshift-distance z(L) law and the linear velocity-distance V(L) law that emerged later is discussed, using first the expanding space paradigm and then the Robertson-Walker metric. The z(L) and V(L) laws are theoretically equivalent only in the limit of small redshifts, and failure to distinguish between the two laws obscures the basic elementary principles of modern cosmology. The linear V(L) law [V=HL, where H(t) is the Hubble term] applies quite generally in expanding homogeneous and isotropic cosmological models, and recession velocities can exceed the velocity of light