Jacob and Wilhelm Grimm, commonly known as the Brothers Grimm, were not primarily writers but philologists whose names are still as well known in the field of linguistics as they are to readers of fairy tales. Grimm's Law is a basic rule in the study of Indo-European languages, and the dictionary of the German language is largely their work. Although the fairy tales were always intended to be read by children, they were also meant to represent German culture at its most fundamental level. The Grimms thought that culture at the level of the common people exists in its purest form and is the least influenced by foreign traditions.