Nature (n.) is a deterministic system and the human self is not part of nature but a separate kind of substance or reality. The sharp distinction between physical nature and the human soul is one of the indubitable conclusions to which the cartesian method brings us.
Nature (n.) is a machine such that it blends together a mechanism and an artificialism.
Nature (n.) is basic, as given by God, and the human is a problem (which is expressed in terms of the question about the relations of body and soul).
Nature (n.) is capable of being understood only once it has been fitted into the 'rational scheme' of mechanics, medicine, or morals.
Nature (n.) is intelligible. God, through his divine reason, has created nature so that it is ruled by immutable and universal laws. These govern the chains of causes and effects, of which the world and history consist. Because these laws are rational, human reason can comprehend nature via mathematical laws.
Nature (n.) is known as inwardly derived and belonging to the self.
Nature (n.) is pure exteriority , outside of or separated from the principle of its creation, God.
Nature (n.) is revealed to humanity through the understanding.
Nature (n.) is the pure product of God's creative power. Nature is the totality of external relations related to one another.