Sunday Philosophy

Considering that it is Sunday, this somewhat theological passage from the pen of Gottfried Wilhelm Von Leibniz (1646-1716) seemed appropriate to post. Leibniz was German mathematician and philosopher celebrated for his work in logic and rationalism and whose binary system is the foundation for contemporary computer science. See if you can make some sense of this:

"But in order to explain a little more clearly how, from
truths that are eternal, essential or metaphysical there
arise truths that are temporary, contingent or physical,
we ought first to recognize that from the very fact that
something exists rather than nothing, there is in possible
things, that is, in the very possibility or essence itself, a
certain need of existence, or, so to speak, a claim to
existence; in a word that essence tends of itself towards
existence, in proportion to their quantity of essence or
reality, or in proportion to the degree of perfection they
contain; for perfection is nothing else than
quantity of essence."