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Continue to ChatTo ensure that no one gained an advantage over anyone else, commercial law prohibited innovation in tools or techniques, underselling below a fixed price, working late by artificial light, employing extra apprentices or wife and under-age children, and advertising of wares or praising them to the detriment of others. - Barbara Tuchman from https://whatsmyquote.com/quote/to-ensure-that-no-one-gained-an-advantage-over-anyone-else-commercial-law-prohibited-innovation-in-tools-or