Tributes pour in for Leonard Nimoy, aka Mr Spock

"Long before being nerdy was cool, there was Leonard Nimoy," said Obama, who recalled meeting the Boston-born Nimoy with the Vulcan salute in 2007. William Shatner, who played Captain James T. Kirk on "Star Trek," was similarly effusive in his praise. We will all miss his humor, his talent, and his capacity to love," Shatner said on Twitter and Facebook.