Introduction

What is thinking? How much will we ever know of the ever-present but changing human mind?

PART ONE Sources of Thought

From the beginnings of life, the inward flow of sensations and experiences
is organized by the brain in a variety of ways. The transformation
of what is heard, seen, or touched is dependent upon the skill of
the human mind in representing events as images, as inner speech, as
kinesthetic symbols. Through these varied forms or languages, the consequences
or meanings of these experiences are stored.