if something exists, there must be something to cause it
if a statement is true, there must be a reason why
if something happens, there must be a reason
Leibniz argued that it doesnt matter if something is eternal or not, we still need a reason for it
How does Leibniz use the example of geometry books to explain how everything needs a reason?
"Suppose a book on the elements of geometry has always existed, each copy made from an earlier one, with no first copy. We can explain any given copy of the book in terms of the previous book it was based off of. But this will never lead us to a complete conclusion"
