"Star Trek" legend Leonard Nimoy passed away on Friday morning at the age of 83. He played Spock on "Star Trek" from 1966 to 2013,

Who doesn't know 'Spock' his character from Star Trek? He played him on TV and on the big screen.

Live Longer and Prosper was his motto. And, that's exactly what he did.

Celebrities sent tributes...

William Shatner:  "I loved him like a brother.  We'll all miss his humor, his talent, and his capacity to love."

George Takei:  "The world lost a great man, and I lost a great friend. The word extraordinary is often overused, but I think it's really appropriate for Leonard.  He was an extraordinarily talented man, but he was also a very decent human being."



Walter Koenig, who played Chekov, said he knew the Spock character better than he did Leonard at first . . . and added, quote, "When I finally did get to know the man better I discovered his compassion, his intelligence and his humanity.  All of which laid the foundation for his keen sense of philanthropy."

Nichelle Nichols, who played Uhura:  Quote, "I am deeply saddened by the death of my dear friend.  But, I also want to celebrate his extraordinary life.  Leonard’s integrity and passion as an actor and devotion to his craft helped transport 'Star Trek' into television history. His vision and heart are bigger than the universe. I will miss him very much."

In addition, Zachary Quinto, who plays Spock in the new "Trek" movies:  "My heart is broken.  I love you profoundly my dear friend.  And I will miss you every day."  The two of them had become very close after Quinto took over the role in 2009.

Patrick Stewart got to work with Nimoy on "Star Trek: The Next Generation" and got to see him at the conventions for years.   He said, quote,  "It is with sadness that I heard this morning of the death of friend and colleague. I was lucky to spend many happy hours with Leonard socially and in front of the camera. The caliber and serious commitment of his work was one of the things all of us on'Star Trek: The Next Generation' sought to match and be inspired by.  His work will not be forgotten."

Listen to Leo and Rebecca talk about it here:

Media Gallery