There is no such thing as free will in the mental sphere or chance in the physical world. Everything that happens is a manifestation of God’s inscrutable nature, and it is logically impossible that events should be other than they are.
 Bertrand Russell, A History of Western Philosophy (1945). copy citation

Context

“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.
Everything, according to Spinoza, is ruled by an absolute logical necessity. There is no such thing as free will in the mental sphere or chance in the physical world. Everything that happens is a manifestation of God’s inscrutable nature, and it is logically impossible that events should be other than they are. This leads to difficulties in regard to sin, which critics were not slow to point out. One of them, observing that, according to Spinoza, everything is decreed by God and is therefore good, asks indignantly: Was it good that Nero should kill his mother?” source