"If you're very, very conservative and you like that sort of practice, go find a very conservative Zen master and just do traditional Japanese practice, which is not that traditional actually."

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There are various non-statistical tools that have been typically developed by lean companies, notably by Toyota for minimizing variability in production, such as standardization, introduction of takt time, synchronization, shortening the total production lead time which I am fond of referring to as non statistical tools.

— Masaaki Imai