In order to learn a language, students must work on increasing their memory power and master big lists of vocabulary pairs. Their roles are carefully prescribed; students must immerse themselves in the processes of the method. They should not try to figure out, manipulate, or study the material presented to them - instead, they must stay in a "pseudo-passive state, in which the material rolls over and through them," and encourage their own "infantilization." (Jack C. Richards & Theodore Stephen Rodgers, Approaches and Methods in Language Teaching)