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