There are four purposes of improvement: easier, better, faster, and cheaper. These four goals appear in the order of priority.

When you buy bananas all you want is the fruit not the skin, but you have to pay for the skin also. It is a waste. And you the customer should not have to pay for the waste.

Improvement usually means doing something that we have never done before.

The best approach is to dig out and eliminate problems where they were assumed not to exist.

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

Those who are not dissatisfied will never make any progress

It's only the last turn of a bolt that tightens it - the rest is just movement.