Quotes from Clayton M. Christensen

What are the assumptions that have to prove true in order for me to be able to succeed in this assignment?" List them. Are they within your control? Equally important, ask yourself what assumptions have to prove true for you to be happy in the choice you are contemplating. Are you basing your position on extrinsic or intrinsic motivators? Why do you think this is going to be something you enjoy doing? What evidence do you have?

As Medicare, Medicaid, and private health assistance companies pervasively inserted themselves between patients and providers, the market ultimately evolved toward what economists call monopsony—where a few huge, powerful buyers essentially determine the prices they will pay to their more fragmented suppliers.

Much of the ability to create and maintain valuable brands, as a consequence, has migrated away from the product and to the channel because, for the present, it is the channel that addresses the piece of added value that is not yet good enough.

But just as was true in understanding flight, problems in our lives don't always map neatly to theories on a one-to-one basis.

The leading firms in the established technology remain financially strong until the disruptive technology is, in fact, in the midst of their mainstream market.

If history is any guide, companies that keep disruptive technologies bottled up in their labs, working to improve them until they suit mainstream markets, will not be nearly as successful as firms that find markets that embrace the attributes of disruptive technologies as they initially stand.

They are always motivated to go up-market, and almost never motivated to defend the new or low-end markets that the disruptors find attractive. We call this phenomenon asymmetric motivation. It is the core of the innovator's dilemma, and the beginning of the innovator's solution.

Every successful product or service, either explicitly or implicitly, was structured around a job to be done. Addressing a job is the causal mechanism behind a purchase. If someone develops a product that is interesting, but which doesn't intuitively map in customers' minds on a job that they are trying to do, that product will struggle to succeed—unless the product is adapted and repositioned on an important job.

Finding Happiness in Your Career The only way to be truly satisfied is to do what you believe is great work. And the only way to do great work is to love what you do. If you haven't found it yet, keep looking. Don't settle. As with all matters of the heart, you'll know when you find it. —Steve Jobs

The theory of good money, bad money explains that the clock of building a fulfilling relationship is ticking from the start. If you don't nurture and develop those relationships, they won't be there to support you if you find yourself traversing some of the more challenging stretches of life, or as one of the most important sources of happiness in your life.

If you work to understand what job you are being hired to do, both professionally and in your personal life, the payoff will be enormous.

The evidence summarized in this matrix may be of some use to venture capital investors, as a general way to frame the riskiness of proposed investments. It suggests that start-ups which propose to commercialize a breakthrough technology that is essentially sustaining in character have a far lower likelihood of success than start-ups whose vision is to use proven technology to disrupt an established industry with something that is simpler, more reliable, and more convenient.