"La parole nous a été donnée pour
déguiser notre pensée." ("We were given
speech to hide our thought.") -- Charles Maurice de
Talleyrand-Périgord (better known simply as
Tallyrand;
b. 1754-02-02, d. 1838-05-17)
Maybe this is where Douglas Adams got the anecdote about "The most heinous of all social diseases, telepathy," which forced a race of beings to fill their lives with useless chatter so their true thoughts would not be transmitted.
(no subject)