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Leonard Nimoy grateful for the opportunities his 60-year career has given him

Having lived long and prospered, former Star Trek star Leonard Nimoy takes one final bow with a guest appearance on Fox’s "Fringe” on Thursday night

BY LILLIE-BETH BRINKMAN Modified: May 19, 2010 at 5:05 am •  Published: May 19, 2010

After 60 years, Leonard Nimoy will say goodbye to film and television for good Thursday night with a final guest-star appearance on Fox’s science-fiction drama "Fringe.”

No more Mr. Spock from the original 1960s "Star Trek” series, where Nimoy first gave us the Vulcan phrase "Live long and prosper.” No more from "Fringe’s” William Bell, the morally ambiguous scientist Nimoy portrays who can travel between alternate universes.

And though he’s retired before and was compelled to return to acting in the 2009 "Star Trek” movie as the older Spock, he’s adamant that his decision this time is final. He’s ready to turn his most famous character over to Zachary Quinto, who portrayed the younger Spock in the latest film, and move onto other ventures.

"Sixty years, I think, is long enough,” Nimoy said during a recent conference call with reporters. "I decided some time ago that I didn’t want to do this anymore.”

Nimoy, 79, isn’t slowing down. A longtime photographer, he is making prints for his first solo exhibition at a major museum, the Massachusetts Museum of Contemporary Art.