GLOSSARY 223

INDEX 227




THE SCIENCE OF HUMAN NATURE




CHAPTER I

INTRODUCTION


=Science.= Before attempting to define psychology, it will be helpful to
make some inquiry into the nature of science in general. Science is
knowledge; it is what we know. But mere knowledge is not science. For a
bit of knowledge to become a part of science, its relation to other bits
of knowledge must be found. In botany, for example, bits of knowledge
about plants do not make a science of botany. To have a science of
botany, we must not only know about leaves, roots, flowers, seeds, etc.,
but we must know the relations of these parts and of all the parts of a
plant to one another. In other words, in science, we must not only
_know_, we must not only have _knowledge_, but we must know the
significance of the knowledge, must know its _meaning_. This is only
another way of saying that we must have knowledge and know its relation