Speech has both an individual and a social side, and we cannot conceive of one without the other.

The critical principle demanded an examination, for instance, of the contribution of different periods, thus to some extent embarking on historical linguistics.

It is one of the aims of linguistics to define itself, to recognise what belongs within its domain. In those cases where it relies upon psychology, it will do so indirectly, remaining independent.

A linguistic system is a series of differences of sound combined with a series of differences of ideas...

Speech has both an individual and a social side, and we cannot conceive of one without the other.

Outside speech, the association that is made in the memory between words having something in common creates different groups, series, families, within which very diverse relations obtain but belonging to a single category: these are associative relations.

Without language, thought is a vague, uncharted nebula.