Management, business, leadership and investing quotes and many other famous quotes

When you see data, doubt [them]! When you see measurements, doubt them!
If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.
Improvement of Quality and Productivity, to be successful in any company, must be a learning process, year by year, top management leading the whole company.