A central difficulty in the way of understanding Spinoza's metaphysical system is that of reconciling two apparently contradictory theories of the causation of finite modes found in his Ethics. The easiest way to present the problem is to place these two accounts side by side.A. All things which follow from the absolute nature of any attribute of God must forever exist, and must be infinite; that is to say, through that attribute they are eternal and infinite. A thing which has (...) been determined to any action was necessarily so determined by God. Together, these propositions entail that God is a necessary and sufficient condition for the occurrence of any action, and that anything so determined is eternal and infinite. Compare these implications with the following.B. An individual thing or a thing which is finite and has determinate existence cannot exist nor be determined to action unless it be determined to existence and action by another cause which is also finite and has a determinate existence; and again this cause cannot exist nor be determined to action unless by another cause which is also finite and determined to existence and action, and so on, ad infinitum. (shrink)