  It has been pointed out, however, that this type of solution is not without serious problems (Shein, 2009). Briefly, the issue is as follows: The main reason for rejecting the subjectivist view is that in that type of interpretation, God, as he is in himself, remains unknowable, and this conflicts with Spinoza’s view that adequate knowledge is possible. However, as Spinoza makes clear in 1P10Schol, nature must be conceived under attributes. In light of this, an attribute-independent structure, by its very nature as “attribute-independent,” is unknowable as well. Therefore, in this view, knowledge of the union or the nature of the identity between mind and body, is in principle unknowable, and, in that respect, does not provide any advantage over subjectivist views.