The treatment of the second kind of knowledge, that is, reason in Spinoza’s Ethics is problematic because there are two different explanations which do not necessarily go well together (cf. Bennett, 1984). On the one hand, there is the...
moreThe treatment of the second kind of knowledge, that is, reason in Spinoza’s Ethics is problematic because there are two different explanations which do not necessarily go well together (cf. Bennett, 1984). On the one hand, there is the claim that reason is based on common notions (E2p38-39), On the other hand, there is the claim that reason is ordered according to the order of the intellect (E2p18, Wilson, 1996), which seems to be the same claim as the one made in E2p11c according to which ideas of reason have a right kind of relationship to God’s intellect (Renz, 2010).
In my presentation, I approach the problem of the second kind of knowledge in the general framework presented by Renz (Renz, 2010) where common notions referring to geometrical-mechanical features underlying physical ones allow us to build a scientific understanding of properties of objects (Renz forthcoming). However satisfying is this description in the theoretical level, it is still not clear how knowledge of these basic geometrical features is supposed to provide practical scientific knowledge, as well as serve as the basis of the ethical character of the wise man. Therefore, I would like to present a phenomenological approach based on Spinoza’s treatment of agreement in nature (cf. Sangiacomo, 2015) and argue that what are common to the perceiver and the perceived change dynamically based on the conscious mental life of the perceiver.
More precisely, I argue that the term “equally in the part and in the whole” means that the given property is the essence of a mode which takes part in the relation constituting the essence of the individual. The ideas of these modes constitute the conscious experience of the given mind and they allow it to form adequate ideas about external objects. Based on the treatment of the conscious experience of infants (Nadler, 2008), I argue that phenomenally speaking the modes involved in the relation defining the essence of the individual constitute the scope of attention of the human mind. Thus, a shift in the attention is the same thing as the reordering of the parts of the human body, which rearranges the list of those natures which the human mind can actually understand in the given moment. However, this does not have to mean that those natures with which the body in the moment cannot accord in nature are forever out of reach for the human mind, since given the right nutrition (E4p45c2s, E4app27) it can accord in nature with all those natures that are required. The main constrain on the capacity of understanding of the mind is the number of natures with which it can accord at the same time (E2p13c, E2p14, E2p39c, E2p40s1, E4p38, E5p39), which fits well with Cartesian discourse on the possibility or impossibility to keep in mind all elements of a whole chain of inference. Also, it helps to accommodate both descriptions of the second kind of knowledge and provide further insights on the role of knowledge of God in the Ethics as presented in E2p11c.