Whether dark energy is truly a new component of energy density or an extension of gravitational physics is not yet known. dld.bz/HDrF

Geoffrey Nunberg: Middle-class whites wanted a little space between them and the rednecks. [N-word, The Way We Talk Now] dld.bz/JgwB

Donald Rumsfeld: "Clearly, what US forces are currently doing in Iraq is not working well.." [Known and Unknown] Books dld.bz/PZBQ

Brian Greene: ".. someday our understanding of multiple universes will mature.." [The Hidden Reality] Books dld.bz/RVp4

Bing West: "#Obama said that Afghanistan will see no end to the violence .." [The Wrong War] Books dld.bz/PT6y

Oliver Sacks: "For 2 weeks, I could recognize everyone I knew by smell." [#Mind's Eye] dld.bz/JgwB Science SciFri NYTimesScience

G. Nunberg: GOP TheDemocrats have forgone any pretense that Americans have the patience to listen to hours of oratory. dld.bz/JgwB

Jonathan Alter: ".. the country would have slipped into an economic depression." [The Promise] Obama Nonfiction Books dld.bz/P6DR

I used the phrase in a Pentagon press conference one day, and that's when.. [Donald Rumsfeld] pentagonchannel dld.bz/K9cd

NewSouth Books doesn't go far enough with its censorship of "Adventures of Huckleberry Finn." [#Colbert Report Books] dld.bz/NJXt