Quoted: Both the tree and the semilattice are ways of thinking about how a large collection of many small systems goes to make up a large and complex system. More generally, they are both names for structures of sets.

Quoted: In a 2003 interview, when asked the softball question “How are you?” he answered: “I’m mad about being old, and I’m mad about being American. Apart from that, O.K.”

Quoted: Paulo Freire

Quoted: It’s mushroom-hunting season and that means dozens of Russians become so hypnotized that they get hopelessly lost in forests.

Quoted: georg baselitz biography

Quoted: VR panoramas from around the world. Part of the Geo-Images Project, University of California Berkeley.

Quoted: President Obama was never considered a front-runner for this year's Nobel Peace Prize. But the names of the nominees are kept secret, which fuels a vigorous guessing game each year before the announcement.

Quoted: A particularly high-profile farmers market opened in Washington, D.C., this week. It's just two blocks from the White House -- and the first customer was the first lady. Michelle Obama shopped for potatoes, peppers and Tuscan kale with Secret Service agents all around.

Quoted: First came the Scouts' band - then goths, smokers and a lament for lost clubs in parade organised by Turner prize winner