President Obama released a statement Friday on the death of Leonard Nimoy. The actor, best known for his role as Spock on Star Trek died at the age of 83 earlier today.

Long before being nerdy was cool, there was Leonard Nimoy. Leonard was a lifelong lover of the arts and humanities, a supporter of the sciences, generous with his talent and his time. And of course, Leonard was Spock. Cool, logical, big-eared and level-headed, the center of Star Trek’s optimistic, inclusive vision of humanity’s future. I loved Spock. In 2007, I had the chance to meet Leonard in person. It was only logical to greet him with the Vulcan salute, the universal sign for “Live long and prosper.” And after 83 years on this planet––and on his visits to many others––it’s clear Leonard Nimoy did just that. Michelle and I join his family, friends, and countless fans who miss him so dearly today.

Upon meeting for the first time, Nimoy said the president greeted him with the iconic Vulcan salute.

In the past, Obama has been criticized for being too “Spock-like” or methodical in his proceedings, to which the president once playfully responded, “Is that a crack on my ears?”

Nimoy’s death has sparked an outpouring of eulogies from fans, fellow actors, and politicans alike. Earlier, Sen. Elizabeth Warren tweeted:

Spock is gone – and so is our last chance for a Vulcan mind meld with a great son of Boston. Sad day. #LLAP — Elizabeth Warren (@elizabethforma) February 27, 2015

RIP.