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Single Idea 5047

[filed under theme 10. Modality / A. Necessity / 7. Natural Necessity ]

Full Idea

Although the world is not metaphysically necessary, such that its contrary would imply a contradiction or logical absurdity, it is necessary physically, that is, determined in such a way that its contrary would imply imperfection or moral absurdity.

Gist of Idea

The world is physically necessary, as its contrary would imply imperfection or moral absurdity

Source

Gottfried Leibniz (On the Ultimate Origination of Things [1697], p.139)

Book Ref

Leibniz,Gottfried: 'Philosophical Writings', ed/tr. Parkinson,G.H.R. [Dent 1973], p.139


A Reaction

How does Leibniz know things like this? The distinction between 'metaphysical' necessity and 'natural' (what he calls 'physical') necessity is a key idea. But natural necessity is controversial. See 'Essentialism'.


The 7 ideas from 'On the Ultimate Origination of Things'

Leibniz first asked 'why is there something rather than nothing?' [Leibniz, by Jacquette]
The world is physically necessary, as its contrary would imply imperfection or moral absurdity [Leibniz]
We follow the practical rule which always seeks maximum effect for minimum cost [Leibniz]
There must be a straining towards existence in the essence of all possible things [Leibniz]
Wisdom involves the desire to achieve perfection [Leibniz]
Because something does exist, there must be a drive in possible things towards existence [Leibniz]
The principle of determination in things obtains the greatest effect with the least effort [Leibniz]