become so famous. The book is
literally a critique of the reason, although a very different critique
from that worked out by Kant.

"If, by this inquiry into the nature of the understanding," says Locke,
"I can discover the powers thereof, how far they reach, to what things
they are in any degree proportionate, and where they fail us; I suppose
it may be of use to prevail with the busy mind of man to be more
cautious in meddling with things exceeding its comprehension; to stop
when it is at the utmost extent of its tether; and to sit down in a
quiet ignorance of those things which upon examination are found to be
beyond the reach of our capacities." [2]

To the difficulties of the task our author is fully alive: "The
understanding, like the eye, whilst it makes us see and perceive all
other things, takes no notice of itself; and it requires art and pains
to set it at a distance, and make it its own object. But whatever be
the difficulties that lie in the way of this inquiry, whatever it be
that keeps us so much in the dark to ourselves, sure I am that all the
light we can let in upon our own minds, all the acquaintance we can
make with our own understandings, will not only be very pleasant, but
bring us great advantage, in directing our thoughts in the search, of
other things." [3]

(2) Thus, many men have attempted to produce a critical philosophy, and
in much the same sense as that in which Kant uses the words. Those who
have come after them have decided that they were not sufficiently
critical, that they have made unjustifiable assumptions. When we come
to read Kant, we will, if we have read the history of philosophy with
profit, not forget to ask ourselves if he has not sinned in the same
way.

For example, we will ask;--

(a) Was Kant right in maintaining that we find in experience synthetic
judgments (section 51) that are not founded upon experience, but yield
such information as is beyond the reach of the empiricist? There are
those who think that the judgments to which he alludes in evidence of
his contention--the mathematical, for instance--are not of this
character.

(b) Was he justified in assuming that all the ordering of our world is
due to the activity of mind, and that merely the raw material is
"given" us through the senses? There are many who demur against such a
statement, and hold that it is, if not in all senses untrue, at least
highly misleading, since it seems to argue that there is