Microeconomics, A Way of Thinking about Business In economics in particular, education seems to be largely a matter of unlearning and “disteaching” rather than constructive action. A onc- famous American humorist observed that “it’s not ignorance that does so much damage; it’s knowin’ so darn much that ain’t so.” . . .It seems that the hardest things to learn and to teach are things that everyone already knows. Frank H.