Intimate, loving, and enduring relationships with our family and close friends will be among the sources of the deepest joy in our lives.

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.

You can't find returns in investments you haven't made.

Ultimately, when you come up with a classification scheme that is collectively exhaustive and mutually exclusive, then the theory can become what Kuhn called a paradigm.

Justification for infidelity and dishonesty in all their manifestations lies in the marginal cost economics of “just this once.

If the technology is disruptive, on the other hand, the odds are that at the end of the transition, the leaders will have been toppled and new companies will be on top.

An innovation will get traction only if it helps people get something that they're already doing in their lives done better.