Quote by Stanislav Grof
According to materialistic science, any memory requires a material substrate, such as the neuronal network in the brain or the DNA molecules of the genes.
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Summary
This quote suggests that materialistic science argues that in order for memories to exist, they must be dependent on a physical substance, such as the neurons in the brain or the DNA molecules in the genes. This implies that memories are a product of the physical structure or composition of the brain or genes, dismissing any concept of non-physical or metaphysical elements contributing to memory formation or storage.