Personal mastery teaches us to choose. Choosing is a courageous act: picking the results and actions which you will make into your destiny.

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.

In a learning organization, leaders are designers, stewards, and teachers. They are responsible for building organizations where people continually expand their capabilities to understand complexity, clarify vision, and improve shared mental models - that is, they are responsible for learning.

Commitment to the truth...means a relentless willingness to root out the ways we limit or deceive ourselves from seeing what is, and to continually challenge our theories of why things are the way they are. It means continually broadening our awareness. It also means continually deepening our understanding of the structures underlying current events.

I do not believe great organizations have ever been built by trying to emulate another, any more than individual greatness is achieved by trying to copy another 'great person'.

When I look at efforts to create change in big companies over the past 10 years, I have to say that there's enough evidence of success to say that change is possible - and enough evidence of failure to say that it isn't likely. Both of those lessons are important.

The key to success isn't just thinking about what we are doing but doing something about what we are thinking.