The mistake managers often make is defining their industry too narrowly. Digital's market share in the minicomputer market stayed very robust even as it fell off the cliff. Disruption seems to come out of nowhere, but if you know what to look for, you can spot important developments well before the market does.

When the functionality of a product or service overshoots what customers can use, it changes the way companies have to compete. When the product isn't yet good enough, the way you compete is by making better products. In order to make better products, the architecture of the product has to be interdependent and proprietary in character.

The biggest mistake is an over-reliance on data. Managers will say if there are no data they can take no action. However, data only exist about the past. By the time data become conclusive, it is too late to take actions based on those conclusions.

We decided that humility was defined not by self-deprecating behavior or attitudes but by the esteem with which you regard others... Generally, you can be humble only if you feel really good about yourself - and you want to help those around you feel really good about themselves, too.

You may hate gravity, but gravity doesn't care.

If you defer investing your time and energy until you see that you need to, chances are it will already be too late.

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