Through learning we re-create ourselves. Through learning we become able to do something we never were able to do. Through learning we reperceive the world and our relationship to it. Through learning we extend our capacity to create, to be part of the generative process of life.

Dividing an elephant in half does not produce two small elephants.

Reality is made up of circles but we see straight lines.

Mental models are deeply ingrained assumptions, generalizations, or even pictures of images that influence how we understand the world and how we take action.

How has the world of the child changed in the last 150 years?" The answer is. "It's hard to imagine any way in which it hasn't changed.They're immersed in all kinds of stuff that was unheard of 150 years ago, and yet if you look at schools today versus 100 years ago, they are more similar than dissimilar.

Perhaps for the first time in history, human-kind has the capacity to create far more information than anyone can absorb; to foster far greater interdependency than anyone can manage, and to accelerate change far faster than anyone's ability to keep pace.

Businesses and other human endeavors are also systems. They, too, are bound by invisible fabrics of interrelated actions, which often take years to fully play out their effects on each other. Since we are part of that lacework ourselves, it's doubly hard to see the whole pattern of change. Instead we tend to focus on snapshots of isolated parts of the system, and wonder why our deepest problems never seem to get resolved.