"Have you ever been involved with a team of people who functioned together superbly? It may have been in business, school, or sports, but it probably happened only once or twice in your lifetime. People trusted each other, complemented each other's strengths, compensated for each other's weaknesses, aimed for goals higher than anyone might have dared individually - and as a result produced an extraordinary outcome.
Such teams display special characteristics: Each member is committed to continual improvement, each suspends judgment as to what's possible and so remove mental limitations, each shares a vision of greatness, and the team's collective IQ is far greater than any individual's. Team members also recognize and understand the system in which they operate and how they can influence it.
These characteristics describe the essence of a [true] learning organization."
by Peter M. Senge, The Fifth Discipline