“Knowing how we know” is the subject of this book. 
Its authors present a new view of cognition 
that has important social and ethical implications, 
for, they assert, the only world we humans can have 
is the one we create together through the actions of our coexistence.
Written for a general audience as well as for 
students, scholars, and scientists 
and abundantly illustrated with examples from 
biology, linguistics, and social and cultural phenomena, 
this revised edition includes a new afterword by Dr. Varela, 
in which he discusses the effect the book has had in the years since its first publication.