Any poll is a picture of an unfinished horse race except the Election Day polls.

Abortion should not only be safe and legal, it should be rare.

That's what she [Hillary Clinton] is done with everything all her life. She just makes something good happen, and that's what you need.

A lot of presidential memoirs, they say, are dull and self-serving. I hope mine is interesting and self-serving.

Through scientific discovery and technological innovation, we enlist the forces of the natural world to solve many of the uniquely human problems we face - feeding and providing energy to agrowing population, improving human health, taking responsibility for protecting the environment and the global ecosystem, and ensuring our own Nation's security. Scientific discoveries inspire and enrich us, teaching us about the mysteries of life and the nature of the world.

Mental illness is nothing to be ashamed of, but stigma and bias shame us all.

We simply have to transition from an economy based almost exclusively on oil and coal and natural gas to one that's far more diversified, that uses solar energy, and wind energy, and the power of the tides, and bio-mass energy, and eventually, develops hydrogen.