[...] the sounds of speech are localized in the auditory tract of the brain [...] as other classes of sounds are localized; and [...] the motor processes involved in speech [...] are localized in the motor tract precisely as are all other impulses to special motor activities.
- Sapir (1921), a pag.9

[...] the outward, or psychophysical, aspect of language is of a vast network of associated localizations in the brain and lower nervous tracts, the auditory localizations being without doubt the most fundamental of all for speech.
- Sapir (1921), a pag.10

If language can be said to be definitely 'localized' in the brain, it is only in that general [...] sense in which all aspects of consciousness, all human interest and activity, may be said to be 'in the brain'.
- Sapir (1921), a pag.10