Basic-level primacy: The idea that basic-level categories are functionally and epistemologically primary with respect to the following factors: gestalt perception, image formation, motor movement, knowledge organization, ease of cognitive processing (learning, recognition, memory, etc.), and ease of linguistic expression.
- Lakoff (1987), a pag.13

Basic-level category structure reflects the bodily nature of the people doing the categorizing, since it depends on gestalt perception and motor movements.
- Lakoff (1987), a pag.371