BOOK I PART II
the other side of the question, and that the doc-
trine of indivisible points is also liable to unan-
swerable objections. Before I examine these ar-
guments and objections in detail, I will here
take them in a body, and endeavour by a short
and decisive reason to prove at once, that it is
utterly impossible they can have any just foun-
dation.
It is an established maxim in metaphysics,
That whatever the mind clearly conceives, in-
cludes the idea of possible existence, or in other
words, that nothing we imagine is absolutely
impossible. We can form the idea of a golden
mountain, and from thence conclude that such
a mountain may actually exist. We can form no
idea of a mountain without a valley, and there-
fore regard it as impossible.
Now it is certain we have an idea of exten-