No research without action, no action without research.

There is nothing so practical as a good theory.

Learning is more effective when it is an active rather than a passive process.

A successful individual typically sets his next goal somewhat, but not too much, above his last achievement.

If you want to learn about an organization, try to change it.

The American culture ideal of the "self-made-man," of everyone "standing on his own feet" seemed as tragic a picture as the initiative-destroying dependence on a benevolent despot. He felt and perceived clearly that we all need continuous help from each other, and that this type of interdependence is the greatest challenge to maturity of individual and group functioning.

Experience alone does not create knowledge.