This is different in the Greek, Latin and ancient Indian. In those tongues many verbs must be studied separately, as they have numerous exceptions, phonetic changes, deficiencies, etc., and in other respects carry with them a marked individuality. The difference between these cultivated and those rude languages is chiefly merely one of time, and of the more or less fortunate mixture of dialects; though it certainly also depends in a measure on the original mental powers of the nations. Those whose languages we have here analyzed are, in speaking, constantly putting together elementary parts; they connect nothing firmly, because they follow the changing requirements of the moment, joining together only what these requirements demand, and often leave connected through habit, that which clear thinking would necessarily divide. Hence no just division of words can arise, such as is demanded by accurate and appropriate thought, which requires that each word must have a fixed and certain content and a defined grammatical form, and as is also demanded by the highest phonetic laws. Nations richly endowed in mind and sense will have an instinct for such correct divisions; the incessant moving to and fro of elementary parts of speech will be distasteful to them; they will seek true individuality in the words they use; therefore they will connect them firmly, they will not accumulate too much in one, and they will only leave that connected which is so in thought, and not merely in usage or habit. ------------ _Notes (by the translator) on the various American Tribes and Languages mentioned by Humboldt in the preceding Memoir._ _Abipones._--A tribe formerly residing on the broad grassy plains known as _El Gran Chaco_, west of the Parana river and on the right bank of the Rio Vermejo. They are a nomadic, hunting people, and are related by language closely to the Mocobis and Tobas, more remotely to the Mbayas. The Jesuit, Father Jose Brigniel, wrote an _Arte y Vocabulario de la Lengua Abipona_, which has not been published. _Achaguas._--A small tribe formerly living in Venezuela, between the Apure and Meta rivers. They are mentioned by Piedrahita as an intelligent people. Aristides Rojas says they are now extinct (_Estudios Indigenas_, p. 214. Caracas, 1878). _Beto._--Usually spelled _Betoi or Betoya_. They live on the upper waters of the Meta river in Colombia and are related to the Yaruris. _Caribs._--This widely extended stock occupied much of the northern coast of South America and had planted colonies on many of the Antilles. It is believed that they are distantly connected with the Tupis and Guaranis. _Guaranis._--The name of a number of affiliated tribes in Southern Brazil, Paraguay, Uruguay and the Argentine Republic. The Tupis of Brazil are a branch of the Guaranis.