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

Since all models are wrong the scientist must be alert to what is importantly wrong. It is inappropriate to be concerned about mice when there are tigers abroad.
People who can't understand numbers are useless. The gemba where numbers are not visible is also bad. However, people who only look at the numbers are the worst of all.
Once you get some data it does away with a lot of arguments and people can work as a team going after the biggest problems.