Full Idea
A reason must be given why contingent beings should exist rather than not exist.
Gist of Idea
A reason must be given why contingent beings should exist rather than not exist
Source
Gottfried Leibniz (works [1690])
Book Reference
Cottingham,John: 'The Rationalists' [OUP 1988], p.113
A Reaction
Spinoza rejects all contingency, but this seems an interesting support for it, even though we may need a reason for something where God does not because it is self-evident.