Unless you change direction, you will end up where you are headed.

The most dangerous kind of waste is the waste we do not recognize.

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.

A relentless barrage of 'why’s' is the best way to prepare your mind to pierce the clouded veil of thinking caused by the status quo. Use it often.

Are you too busy for improvement? Frequently, I am rebuffed by people who say they are too busy and have no time for such activities. I make it a point to respond by telling people, look, you’ll stop being busy either when you die or when the company goes bankrupt.

We have to grasp not only the Know-How but also 'Know Why', if we want to master the Toyota Production System.