A Treatise Concerning the Principles of Human Knowledge
by George Berkeley (1685-1753)


WHEREIN THE CHIEF CAUSES OF ERROR AND DIFFICULTY IN THE SCIENCES,
WITH THE GROUNDS OF SCEPTICISM, ATHEISM, AND IRRELIGION,
ARE INQUIRED INTO.




DEDICATION



To the Right Honourable
THOMAS, EARL OF PEMBROKE, &C.,
Knight of the most Noble Order of the Garter and one of
the Lords of Her Majesty's most honourable privy council.

My Lord,

You will perhaps wonder that an obscure person, who has not the honour to
be known to your lordship, should presume to address you in this manner.
But that a man who has written something with a design to promote Useful
Knowledge and Religion in the world should make choice of your lordship
for his patron, will not be thought strange by any one that is not
altogether unacquainted with the present state of the church and
learning, and consequently ignorant how great an ornament and support you
are to both. Yet, nothing could have induced me to make you this present