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.

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

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.

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

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

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

Those who are not dissatisfied will never make any progress

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.

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

In order to master the ability to lead, develop and deliver innovation at speed systematically, you must challenge your assumptions and expectations that influence your actions.

Let go of your past, and look to Mine, where I died for you. Yield to Me, and I will make you a true Knight of the Prince.

If an elderly but distinguished scientist says that something is possible, he is almost certainly right; but if he says that it is impossible, he is very probably wrong.

If you are an inventor, then you are destined for blood, sweat and tears.

I have suffered too much in this world not to hope for another.

Marygreen did not change in sixteen years. It had changed little enough in the past two years.

The thing to judge in any jazz artist is, does the man project and does he have ideas.

The bigger the humbug, the better people will like it.

Why should I give you an interview? All you journalists are plagiarists.

People should not be responding to bigoted ugliness with any ugliness of their own.