“If an expert says it can't be done, get another expert”

“If the world should blow itself up, the last audible voice would be that of an expert saying it can't be done.”

“Always listen to experts. They'll tell you what can't be done, and why. Then do it.”

“There are experts in little things but there are no experts in big things. There are experts in this fact and that fact but there are no moral experts.”

“For every expert there is an equal and opposite expert.”

“None of our men are 'experts.' We have most unfortunately found it necessary to get rid of a man as soon as he thinks himself an expert because no one ever considers himself expert if he really knows his job. A man who knows a job sees so much more to be done than he has done, that he is always pressing forward and never gives up an instant of thought to how good and how efficient he is. Thinking always ahead, thinking always of trying to do more, brings a state of mind in which nothing is impossible. The moment one gets into the 'expert' state of mind a great number of things become impossible.”