EXHIBIT 23.3
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
    We consent to the inclusion in this Registration Statement on Form S-4 of
our report dated February 17, 1998, on our audits of the consolidated financial
statements and financial statement schedule of Cognizant Corporation and
subsidiaries ("Cognizant") as of December 31, 1997 and 1996, and for each of the
three years in the period ended December 31, 1997, which report is included in
Cognizant's Annual Report on Form 10-K for the year ended December 31, 1997. We
also consent to the reference to our firm under the caption "Experts" in this
Registration Statement.
 
                                          COOPERS & LYBRAND L.L.P.
 
New York, New York
June 1, 1998