Lean is a way of thinking- not a list of things to do
The most dangerous kind of waste is the waste we do not recognize.
Unless you change direction, you will end up where you are headed.
There are four purposes of improvement: easier, better, faster, and cheaper. These four goals appear in the order of priority.
The best approach is to dig out and eliminate problems where they were assumed not to exist.
Those who are not dissatisfied will never make any progress