As much as 95% of quality related problems in the factory can be solved with seven fundamental quantitative tools.

- Kaoru Ishikawa

Failure is the seed of success

- Kaoru Ishikawa

The ideas of control and improvements are often confused with one another. This is because quality control and quality improvement are inseparable.

- Kaoru Ishikawa

Quality control starts and ends with training.

- Kaoru Ishikawa

As with many other things, there is a surprising amount of prejudice against quality control, but the proof of the pudding is still in the eating.

- Kaoru Ishikawa

When you see data, doubt [them]! When you see measurements, doubt them!

- Kaoru Ishikawa

In management, the first concern of the company is the happiness of people who are connected with it. If the people do not feel happy and cannot be m…

- Kaoru Ishikawa

Quality control is applicable to any kind of enterprise. In fact, it must be applied in every enterprise.

- Kaoru Ishikawa

Quality control which cannot show results is not quality control. Let us engage in QC which makes so much money for the company that we do not know w…

- Kaoru Ishikawa