By the time it becomes obvious that a technology will have truly disruptive impact, it is often too late to take action. This is one reason why we are such advocates of using theory to try to analyze industry change. Conclusive evidence that proves that a company needs to take action almost never exists. In fact, the data can fool management, lulling them into a false sense of security.
Clayton ChristensenThink about the metric by which your life will be judged, and make a resolution to live every day so that in the end, your life will be judged a success.
Clayton ChristensenChildren build self-esteem by doing things that are hard and learning what works.
Clayton ChristensenBut actually theory is very practical. Gravity is a theory, for example. It allows you to predict that if you step off a cliff you will fall; you don't have to collect data on that.
Clayton Christensen