A new era in the physiological investigation of linguistic sounds was opened up by X-ray photography.

Bilingualism is for me the fundamental problem of linguistics.

It is once again the vexing problem of identity within variety; without a solution to this disturbing problem there can be no system, no classification.

Every linguistic sign is located on two axes: the axis of simultaneity and that of succession.

Languages differ essentially in what they must convey and not in what they may convey.

At first acoustics attributed to the different sounds only a limited number of characteristic features.

In poetic language, in which the sign as such takes on an autonomous value, this sound symbolism becomes an actual factor and creates a sort of accompaniment to the signified.