When asked what single event was most helpful in developing the Theory of Relativity, Albert Einstein replied, "Figuring out how to think about the problem".

Profit in business comes from repeat customers, customers that boast about your project or service, and that bring friends with them.

When a system is stable, telling the worker about mistakes is only tampering.

When people try to do what they can not do, they wish to give up.

Without questions, there is no learning.

It is important that an aim never be defined in terms of a specific activity or method. It must always relate to a better life for everyone.

We must understand variation.