In the first stage of insight-building, all that researchers can do is observe phenomena. Second, they classify the phenomena in a way that helps them simplify the apparent complexities of the world so they can ignore the meaningless differences and draw connections between the things that really seem to matter. Third, based on the classification system, they propose a theory. The theory is a statement of what causes what and why, and under what circumstances.
Clayton ChristensenDisruption is, at its core, a really powerful idea, but everyone hijacks the idea to do whatever they want now.
Clayton ChristensenWhenever we have thanked these men and women for what they have done for us, without exception they have expressed gratitude for having the chance to help - because they grew as they served.
Clayton ChristensenIf I know what to spec, and I can measure it, and there are no unpredictable interdependencies between what you do and what I must do in response, then an economist would say that is sufficient information for a market to emerge between you and me.
Clayton Christensen