BOOK I PART III
These new experiments are liable to a discus-
sion of the same kind; so that the utmost con-
stancy is requird to make us persevere in our
enquiry, and the utmost sagacity to choose the
right way among so many that present them-
selves. If this be the case even in natural philos-
ophy, how much more in moral, where there is
a much greater complication of circumstances,
and where those views and sentiments, which
are essential to any action of the mind, are so
implicit and obscure, that they often escape our
strictest attention, and are not only unaccount-
able in their causes, but even unknown in their
existence? I am much afraid lest the small suc-
cess I meet with in my enquiries will make this
observation bear the air of an apology rather
than of boasting.
If any thing can give me security in this par-