I hope that this citation is correct. I think this comes from Peter Drucker’s Effective Executive (1967):
Most books on decision making tell the reader: “First find the facts.” But executives who make effective decisions know that one does not start with facts. One starts with opinions.
About the Author

Forrest Christian
Twitter Google+E. Forrest Christian is a consultant, coach, author, trainer and speaker at The Manasclerk Company who helps individuals and companies find insight and solutions to what seem like insolvable problems. Cited for his "unique ability and insight" by his clients, Forrest has worked with people from almost every background, from artists to programmers to executives to global consultants, both as individuals and as leaders of organizations at least as diverse. [contact]
Related
Comments 1
Insert “vision” for “opinions” and I’ll buy it. . . .