"I mean it's hard to even understand how biology was a science as we would recognize it today.

VOA: special.2009.12.01

"Now,I understand that some believe that we should attempt a return to the surface of the Moon first, as previously planned."

VOA: standard.2010.04.21

"And I can tell you as a member of the United States Congress, we understand the Constitution,".

VOA: standard.2009.07.07