The Expression of Emotion in Man and Animals
The Expression of Emotion in Man and Animals
by Charles Darwin
NEW YORK D. APPLETON AND COMPANY 1899
CONTENTS. INTRODUCTION......................................................Pages 1-26
CHAP. I--GENERAL PRINCIPLES OF EXPRESSION. The three chief principles stated--The first principle--Serviceable actions become habitual in association with certain states of the mind, and are performed whether or not of service in each particular case-- The force of habit--Inheritance-- ...