COHEN, RANDY.  The ethicist behind “The Ethicist,” a weekly column in The New York Times Magazine. Cohen penned these entries for Slate shortly after being fi red as head writer of The Rosie O’Donnell Show. They were published in The Slate Diaries, edited by Jodi Kantor, Cyrus Krohn, and Judith Shulevitz. Introduction by Michael Kinsley. New York, Perseus Book Group, 2000. Copyright © 2000 by Michael Kinsley. Reprinted by permission of Public Affairs, a member of the Perseus Books Group.