"To ask "Where in your brain is intelligence?" is like asking "Where is the voice in the radio?""

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The brain, or cerebrum, is a material entity located inside the skull which may be inspected, touched, weighed, and measured. It is composed of chemicals, enzymes, and humors which may be analyzed. Its structure is characterized by neurons, pathways, and synapses which may be examined directly when they are properly magnified.

— Jose Manuel Rodriguez Delgado