A rigid America is also weak and vulnerable, because it sacrifices its unique strength: the energy of people who think they can always make something new of their lives.

Our military plans should be based on the assumption of unpredictability, rather than on carefully drawn, static models of the world.

I have relentlessly beat the drum for Google's 'two-step' authentication systems for Gmail and other services, which radically reduce the likelihood that your account can be hacked from afar.

Make the important interesting.

The worst kind of management seeks a single optimum, a one-scale index of efficiency, like the mindless scales of 1 to 10 for grading a woman's beauty or one to four stars for a movie's appeal.

I am explicitly not opening the giant can of worms that is the ongoing current discussion of patent, copyright, and trademark reform.

When a company is charging money for a product - as Evernote does for all above its most basic service, and same for Dropbox and SugarSync - you understand its incentive for sticking with that product.