"Since Pawlow [Pavlov] and his pupils have succeeded in causing the secretion of saliva in the dog by means of optic and acoustic signals, it no longer seems strange to us that what the philosopher terms an 'idea' is a process which can cause chemical changes in the body."

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Believe me, I know all about bottle acoustics. I spent much of the sixth century in an old sesame oil jar, corked with wax, bobbing about in the Red Sea. No one heard my hollers. In the end an old fisherman set me free, by which time I was desperate enough to grant him several wishes. I erupted out in the form of a smoking giant, did a few lightning bolts, and bent to ask him his desire. Poor old boy had dropped dead of a heart attack. There should be a moral there, but for the life of me I can't see one.

— Jonathan Stroud