" The consumption of drugs has the effect of reducing men's freedom by circumscribing the range of their interests. It impairs their ability to pursue more important human aims, such as raising a family and fulfilling civic obligations. Very often it impairs their ability to pursue gainful employment and promotes parasitism. Moreover, far from being expanders of consciousness, most drugs severely limit it. One of the most striking characteristics of drug-takers is their intense and tedious self-absorption. "

― Theodore Dalrymple , Our Culture, What's Left of It: The Mandarins and the Masses