Since the universal power of nature is only the power of all individual things together, it follows that each individual thing has the sovereign right to do everything it can do, or the right of each thing extends as far as its determined power extends.
Gist of Idea
In nature everything has an absolute right to do anything it is capable of doing
Baruch de Spinoza (Tractatus Theologico-Politicus , 16.01)
A typically ruthless Spinoza idea, very different from the rather ill-founded claims of Locke and Rousseau about the state of nature.
Spinoza,Benedict de: 'Theological-Political Treatise', ed/tr. Israel,Jonathan [CUP 2007], p.195