For it has been truly observed by a great philosopher, that truth…

I shall take leave to think the worse, rather of the practice of the men than of the book of God.

But if judicious men skilled in Chymical affairs shall once agree to write clearly and plainly

the ignorant and credulous (of which the number is still much greater then that of the other)

they are encourag'd to get themselves a name, at the cost of the Readers

admire most what they least understand.

Those hypotheses do not a little hinder the progress of Humane knowledge, that introduce Morals and Politicks into the Explications of Corporeal Nature, where all things are indeed transacted according to Laws Mechanical.