It is a waste of time to worry about what will be acceptable and what the decision maker should or should not say so as not to evoke resistance. (The things one worries about seldom happen, while objections and difficulties no one thought about may suddenly turn out to be almost insurmountable obstacles.) In other words, the decision maker gains nothing by starting out with the question, “What is acceptable?” For in the process of answering it, he or she usually gives away the important things and loses any chance to come up with an effective—let alone the right—answer.
Author: Peter F. Drucker
Source: Harvard Business Review
Subject: Decision Making