The Hawk and the Dove is a wonderful idea for a book, wonderfully carried out. Nicholas Thompson has used illuminating new material to present each of his protagonists in a convincing, respectful, but unsparing way. Even more valuable, he has used the interactions and tensions between Paul Nitze and George Kennan to bring much of American 20th century foreign policy to life, with human richness ever present but with the big issues clear in all their complexity.

Environmental disaster is the gravest threat to China's continued development. That's according to me, but it is not some wacko view.

Everyone in the Chinese economic world knows that the country is not going to move out of cheap-workhouse status, toward the realm of 'real' rich-country corporate power and prosperity, unless (among other changes) it begins removing these price distortions.

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.

Considering all the different ways in which China has interacted with the world in the last 50 years, considering all the challenges ordinary Chinese people have to put up with, it's beneficial and, and, by any rational standard, non-threatening to have national energies channeled into this kind of competition. It's touching to see so many ordinary Chinese crowds cheering for their new heroes.

Successful societies-those which progress economically and politically and can control the terms on which they deal with the outside world-succeed because they have found ways to match individual self-interest to the collective good.

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.