Purva-Mimamsa in its Sources c19.11

c19.11

Lastly, each time that we hear a Word (or Sentence) uttered, we at once recognise it as being the *same*, and not as different in each case. Even though it may be uttered in varying degrees of loudness, yet all the difference that we are cognisant of is that in the tone or pitch of the Sound,—not in the *Word* itself, which latter is always recognised to be the *same*.