"Everyone is entitled to his own opinion, but not his own facts." (Moynihan?)

[Bapopik at AOL.COM]

I was looking at some Daniel Patrick Moynihan materials (specifically, his
Wikipedia page) and found this quote.
...
Does Fred have it? Did James Schlesinger originate it?
...
...
_More  Than Social Security Was at Stake_
(http://proquest.umi.com/pqdweb?index=1&did=126690632&SrchMode=1&sid=1&Fmt=12&VInst=PROD&VType=PQD&RQT=309&VName=H
NP&TS=1131474497&clientId=65882)
Daniel Patrick  Moynihan. The Washington Post (1974-Current  file).
Washington, D.C.: Jan 18, 1983. p. A17 (1 page) :
Everyone is entitled to his own opinion, but not his own facts.
...
...
_The  Nimbus of Myths About Defense_
(http://proquest.umi.com/pqdweb?index=6&did=131663882&SrchMode=1&sid=2&Fmt=12&VInst=PROD&VType=PQD&RQT=309&VName=HNP&TS
=1131474756&clientId=65882)
Robert Debs Heinl  Jr.. The Washington Post (1974-Current file).  Washington,
D.C.: Jan 28, 1979. p. C7 (1 page):
While he was at the Pentagon, James Schlesinger had a favorite saying:  "Each
of us is entitled to his own opinion, but not to his own facts."
...
_Arms  Curb Facts Made in U.S.S.R._
(http://proquest.umi.com/pqdweb?index=1&did=120455371&SrchMode=1&sid=3&Fmt=10&VInst=PROD&VType=PQD&RQT=309&VName=HNP&TS=
1131474828&clientId=65882)
BERNARD F.  HALLORAN. New York Times (1857-Current file). New  York, N.Y.:
Sep 15, 1984. p. 22 (1 page) :
To paraphrase James Schlesinger, every man is entitled to his own opinion
but not to his own facts.