He had but to speak He had but to speak aloud the words that came into his head, and those around him would fall in line. Shane Carruth, Primer wordscommunicationpersuasion
Using your own expertise Almost all professionals are slow to use their own expertise for their own work. The situation is nicely summarized by the old saying, “The shoemaker’s children go without shoes.” Richard Hamming, The Art of Doing Science and Engineering: Learning to Learn The cobbler's children go barefoot