"At still higher doses psilocybin triggers this activity in the language-forming capacity of the brain that manifests as song and vision. Psilocybin may have synergized the emergence of higher forms of psychic organization out of primitive protohuman animals. It can be seen as a kind of evolutionary enzyme, or evolutionary catalyst."

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Words may be either the servants or masters. If the former they may safely guide us in the way of truth. If the latter they intoxicate the brain and lead into swamps of thought where there is no solid footing. Among the sources of those innumerable calamities which from age to age have overwhelmed mankind, may be reckoned as one of the principal, the abuse of words.

— George Horne