In conditions when the upper bourgeoisie and the new nobility which came to the power struggled both with feudal lords reactionaries, and with revolutionary democracy, "Leviathan" was projected first of all on a justification of bourgeois and noble dictatorship of Cromwell.
Leibniz not only characterizes substances, referring to data of microscopy as "live points", but also considers them as some kind of metaphysical differentials, certain infinite small sushchnost. At the strict use of all these terms there is a logical deadlock as the final infinity is impossible, as well as any to it similar concept. But at the allegoric use there is no more suitable designation for substance. Extent, but also in this sense they a point essence, that is as if spatial "anything" is not peculiar to them, but, being substances, they are full of the contents and are inexhaustible.