“Too often the ‘scientific method’ is presented in schools and textbooks as a ‘recipe’ for doing science, with numbered steps even! That’s misleading. At the other extreme, someone said that scientific method is ‘Doing one’s damndest with one’s mind.’ I know many have said more profound things about this subject than I will offer, but here’s some informal comments about scientific method presented as a set of practical and general guidlines for doing science. Scientists have learned these through trial and error during the entire history of science.”