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The Bookseller will not forgive me, if I say nothing of this Second Edition,
which he has promised, by the correctness of it, shall make amends for the
many Faults committed in the former. He desires too, that it should be
known, that it has one whole new Chapter concerning
Identity, and many
additions, and amendments in other places. These I must inform my Reader
are not all new matter, but most of them either farther confirmation of what
I had said, or Explications to prevent others being mistaken in the sense of
what was formerly printed, and not any variation in me from it; I must only
except the alterations I have made in Book
2. Chap. 21.
      What I had there Writ concerning Liberty and the Will, I thought
deserv’d as accurate a review, as I was capable of: Those Subjects having
in all Ages exercised the learned part of the World, with Questions and
Difficulties, that have not a little perplex’d Morality and Divinity, those
parts of Knowledge, that Men are most concern’d to be clear in. Upon a
closer inspection into the working of Men’s Minds, and a stricter examina-
tion of those motives and views, they are turn’d by, I have found reason
somewhat to alter the thoughts I formerly had concerning that, which gives
the last determination to the
Will in all voluntary actions. This I cannot
forbear to acknowledge to the World, with as much freedom and readiness, as
I at first published, what then seem’d to me to be right, thinking my self more
concern’d to quit and renounce any Opinon of my own, than oppose that of
another, when Truth appears against it. For ’tis Truth alone I seek, and that
will always be welcome to me, when or from whencesoever it comes.
      But what forwardness soever I have to resign any Opinion I have, or to
recede from any thing I have Writ, upon the first evidence of any error in it;
yet this I must own, that I have not had the good luck to receive any light
from those Exceptions, I have met with in print against any part of my Book,
nor have, from any thing has been urg’d against it, found reason to alter my
Sense, in any of the Points have been question’d. Whether the Subject, I have
in hand, requires often more thought and attention, than Cursory Readers, at
least such as are prepossessed, are willing to allow? Or whether any obscurity
in my expressions casts a cloud over it, and these notions are made difficult to
others apprehension in my way of treating them? So it is, that my meaning,
I find, is often mistaken, and I have not the good luck to be every where rightly
understood. There are so many Instances of this, that I think it Justice to my

Locke Hum EpR, p. 11