Most lost jobs are outsourced to the past.

Pessimists are usually right and optimists are usually wrong but all the great changes have been accomplished by optimists.

Optimists are usually wrong. But all the great change in history, positive change, was done by optimists.

It's in the nature of the landscape to change, and it's in the nature of people to help the process along...

When widely followed public figures feel free to say anything, without any fact-checking, it becomes impossible for a democracy to think intelligently about big issues.

America is the greatest engine of innovation that has ever existed, and it can't be duplicated anytime soon, because it is the product of a multitude of factors: extreme freedom of thought, an emphasis on independent thinking, a steady immigration of new minds, a risk-taking culture with no stigma attached to trying and failing, a noncorrupt bureaucracy, and financial markets and a venture capital system that are unrivaled at taking new ideas and turning them into global products.