Can the one opinion be intelligible, while the other is not so?
We have, indeed, experience of ideas which fall into order of themselves, and without any known cause.

But, I am sure, we have a much larger experience of matter which does the same; as, in all instances of generation and vegetation, where the accurate analysis of the cause exceeds all human comprehension.

We have also experience of particular systems of thought and of matter which have no order; of the first in madness, of the second in corruption.

Why, then, should we think, that order is more essential to one than the other?
And if it requires a cause in both, what do we gain by your system, in tracing the universe of objects into a similar universe of ideas?
The first step which we make leads us on for ever.

It were, therefore, wise in us to limit all our inquiries to the present world, without looking further.