Strongly Stated, Loosely Held

In keeping with professional forecaster practice, my opinions are strongly stated and loosely held--strongly stated so that clients can get at them to conjure with, loosely held so that facts and the persuasive arguments of others can get at them to change them. My opinion is not important; it's just a tool. The client's evolving opinion is what's important. Your evolving opinion is what's important. If you're reading this book just to reinforce your present opinions, you've hired the wrong consultant. (Stewart Brand, Whole Earth Discipline, 21)