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The test of the machine is the satisfaction it gives you. There isn't any other test. If the machine produces tranquility it's right. If it disturbs you it's wrong until either the machine or your mind is changed.

The test of the machine is the satisfaction it gives you. There isn't any other test. If the machine produces tranquility it's right. If it disturbs you it's wrong until either the machine or your mind is changed.

Approximate author period: c. 1972 AD · modern

Meaning not yet available

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Attribution & collection notes
Author or tradition
Robert M. Pirsig
Attribution: attributed
Country attributed
Not established
A country attribution does not establish the earliest origin.
Historical period
Approximate author period: c. 1972 AD · modern
Approximate author-period anchor from life dates 1928 to 2017; Wikidata Q366575, https://www.wikidata.org/wiki/Q366575 (accessed 2026-10-08). Not a quotation composition date.
An author lifetime, approximate period or collection date is not necessarily the date when these words were first written or spoken.
Recorded source
Contributor-provided quotation collection

Supplied reference C; CSV row 296794; supplied attribution, independently unverified

A collection's publication date can be later than the words it records.