 Although the first half of that statement is thoroughly traditional, Spinoza’s claim that the order of Nature leaves the existence or non-existence of particular finite things undetermined seems to posit  genuine contingency in the world. (In IIp10d, Spinoza cites IIax1 and claims that it would be “absurd” to conclude that a particular person exists necessarily, though it is unclear whether the absurdity lies in the modal conclusion itself or in the reasoning about finite essences that would lead to the modal conclusion.)