" It follows that it is foolish and misleading to concentrate our attention merely on some special point.- to examine, for example, merely what happens to one industry without considering what happens in all. But it is precisely from the persistent and lazy habit of thinking only of some particular industry or process in isolation that the major fallacies of economics stem. These fallacies pervade not merely the arguments of the hired spokesmen of special interests, but the arguments even of some economists who pass as profound. "

― Henry Hazlitt , Economics in One Lesson: The Shortest & Surest Way to Understand Basic Economics