You wish, then, to increase your vocabulary. Of course you must become
observant of words and inquisitive about them. For words are like people:
they have their own particular characteristics, they do their work well or
ill, they are in good odor or bad, and they yield best service to him who
loves them and tries to understand them. Your curiosity about them must be
burning and insatiable. You must study them when they have withdrawn from
the throng of their fellows into the quiescence of their natural selves.
You must also see them and study them in action, not only as they are
employed in good books and by careful speakers, but likewise as they fall
from the lips of unconventional speakers who through them secure vivid and
telling effects. In brief, you must learn word nature, as you learn human
nature, from a variety of sources.

Now in ordinary speech most of us use words, not as individual things, but
as parts of a whole--as cogs in the machine of utterance by which we
convey our thoughts and feelings. We do not think of them separately at
all. And this instinct is sound. In our expression we are like large-scale
manufacturing plants rather than one-man establishments. We have at our
disposal, not one worker, but a multitude. Hence we are concerned with our
employees collectively and with the total production of which they are
capable. To be sure, our understanding of them as individuals will
increase the worth and magnitude of our output. But clearly we must have
large dealings with them in the aggregate.

This chapter and the following, therefore, are given over to the study of
words in combination. As in all matters, there is a negative as well as a
positive side to be reckoned with. Let us consider the negative side
first.