The pyramids are one of those things that live up to the hype. They're elemental in ways that are hard to describe.

There are certain things we can only do together. There are certain things only a union can do. Only a union could harness the courage of our pioneers to settle the American west, which is why President Abraham Lincoln passed a Homestead Act giving a tract of land to anyone seeking a stake in our growing economy.

It is time to do away with work place policies that belong in a Mad Men episode.

The study of geography is about more than just memorizing places on a map. It's about understanding the complexity of our world, appreciating the diversity of cultures that exists across continents. And in the end, it's about using all that knowledge to help bridge divides and bring people together.

On my recent trip to Israel, I had the opportunity to visit Yad Vashem, Israel's national Holocaust memorial, and reaffirm our collective responsibility to confront anti-Semitism, prejudice, and intolerance across the world. On this Yom Hashoah, we must accept the full responsibility of remembrance, as nations and as individuals-not simply to pledge "never again," but to commit ourselves to the understanding, empathy and compassion that is the foundation of peace and human dignity.

We buy our own toilet paper even here in the White House.

Time is running out for Iran to address the international community's growing concerns about its nuclear program.