Languages differ from one another in bewildering and seemingly arbitrary ways. For example, in English, the verb precedes the direct object ('understand the proof'), but in Japanese, the direct object comes first. In some languages, such as Mohawk, it is
Morten H. Christiansen is the William R. Kenan, Jr. professor of psychology at Cornell University as well as a senior scientist at the Haskins Labs and professor in cognitive science of language at the School of Communication and Culture, Aarhus University, Denmark. He is the author of more than 200 scientific papers and has edited four books. He lives near Ithaca, New York.