Bilingualism is for me the fundamental problem of linguistics.

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

Bilingualism is for me the fundamental problem of linguistics.

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

Semantics, or the study of meaning, remained undeveloped, while phonetics made rapid progress and even came to occupy the central place in the scientific study of language.

Remember that the pharynx is at a crossroads from which leads off, at the top, the passage to the mouth cavity and the passage to the nasal cavity, and below, the passage to the larynx.

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