Besides this, the bookseller will think it necessary I should advertise
the reader that there is an addition of two chapters wholly new; the one
of the Association of Ideas, the other of Enthusiasm. These, with some
other larger additions never before printed, he has engaged to print by
themselves, after the same manner, and for the same purpose, as was done
when this Essay had the second impression.

In the Sixth Edition there is very little added or altered. The greatest
part of what is new is contained in the twenty-first chapter of the
second book, which any one, if he thinks it worth while, may, with a
very little labour, transcribe into the margin of the former edition.




ESSAY CONCERNING HUMAN UNDERSTANDING.



INTRODUCTION.


1. An Inquiry into the Understanding pleasant and useful.

Since it is the UNDERSTANDING that sets man above the rest of sensible
beings, and gives him all the advantage and dominion which he has over
them; it is certainly a subject, even for its nobleness, worth our
labour to inquire into. The understanding, like the eye, whilst it makes
us see and perceive all other things, takes no notice of itself; and it
requires and art and pains to set it at a distance and make it its own