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what limitations this maxim may be held.
For of all beliefs, none is more natural than
the belief that it is natural for man to err.
The logician ought to find out what the
relation is between these two tendencies.

It behooves a man first of all
to free his mind of those four idols
of which Francis Bacon speaks
in the first book of the Novum Organum.
So much is the dictate of Ethics, itself. But after that, what?
Descartes, as you know,
maintained that if a man could only
get a perfectly clear and distinct
idea,— to which Leibniz added the
third requirement that it should
be adequate,— then that idea must be