Individual souls and separate pieces of matter are, for Spinoza, adjectival; they are not things, but merely aspects of the divine Being. There can be no such personal immortality as Christians believe in, but only that impersonal sort that consists in becoming more and more one with God.
 Bertrand Russell, A History of Western Philosophy (1945). copy citation

Context

“Spinoza would have none of this. For him, thought and extension were both attributes of God. God has also an infinite number of other attributes, since He must be in every respect infinite; but these others are unknown to us. Individual souls and separate pieces of matter are, for Spinoza, adjectival; they are not things, but merely aspects of the divine Being. There can be no such personal immortality as Christians believe in, but only that impersonal sort that consists in becoming more and more one with God. Finite things are defined by their boundaries, physical or logical, that is to say, by what they are not: “ all determination is negation. ” Hence Spinoza is led to a complete and undiluted pantheism.
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