In this dissertation the sociologism in Ferdinand de Saussure's distinction of LANGAGE, LANGUE and PAROLE is first analysed thoroughly according to the original sources of his 'Cours de linguistique generale', and then compared to Chomsky's individualism as far as language is concerned.
The second part of the dissertation deals with the question how else than only in sociologistic or individualistic terms language can be viewed by analysing the common distintion between Nominalism, Conceptualism and Realism of Philosophers of Mathematics. Revealing the shortcomings of such a restricted distinction as far as language is concerned, the dissertation furthermore analyses the problem of innateness of language discussed by Chomsky and Piaget. The result is that language must not be interpreted in terms of any restricted 'Ism' which excludes other perspectives. The dissertation thus proposes a more undogmatic foundational conception of linguistics than works of modern linguistics seem to suggest.