We must address, individually and collectively, moral and ethical issues raised by cutting-edge research in artificial intelligence and biotechnology, which will enable significant life extension, designer babies, and memory extraction.

For centuries, economic thinkers, from Adam Smith to John Maynard Keynes, have tried to identify the elusive formula that makes some countries more prosperous and successful than others. My curiosity about this topic spurred me, as a young professor of economics in the late 1970s, to research new ways of measuring national competitiveness.

It was a hallmark of Nelson Mandela's leadership that being open to change made him appear not weaker, but even stronger.

I am a great enthusiast and early adopter of technology, but sometimes I wonder whether the inexorable integration of technology in our lives could diminish some of our quintessential human capacities, such as compassion and cooperation.

When I was obese, I reached a point where I was about to meet death, and I lost weight to restart my life.

When I'm out there on the mound, I'm fighting for my teammates, fighting for the ability to stay in the game for a long time. It's war. I see the hitter - I think about what I want to do, but it's a very quick process. Then I attack. It's almost primal.

Like George Sand, the feminism of the present day asserts the right of free thought against the creed of authority in every field; the solidarity of mankind and the cause of peace against the patriotism of militarism; social reform against the existing relations of society.

War is God's way of teaching Americans geography.