Why is manwith-a-hammer syndrome always present? Well if you stop to think about it, it’s incentive caused bias. His professional reputation is all tied up with what he knows. He likes himself and he likes his own ideas, and he’s expressed them to other people – consistency and commitment tendency. I mean you’ve got four or five of these elementary psychological tendencies combining to create this man-with-a-hammer syndrome.
Once you realize that you can’t really buy your thinking (que no te lo crees ni tú), you have learned a lesson that’s very useful in life. George Bernard Shaw had a character say in The Doctor’s Dilemma, “In the last analysis, every profession is a conspiracy against the laity.” But he didn’t have it quite right, because it isn’t so much a conspiracy as it is a subconscious, psychological tendency. The guy tells you what is good for him. He doesn’t recognize that he’s doing anything wrong any more …There are only two ways to handle it: you can hire your advisor and then just apply a windage factor, like I used to do when I was a rifle shooter. I’d just adjust for so many miles an hour wind. Or you can learn the basic elements of your advisor's trade. You don’t have to learn very much, by the way, because if you learn just a little then you can make him explain why he’s right.