You’ve probably already heard the sad news coming out of Los Angeles today, that Star Trek‘s Mr. Spock, Leonard Nimoy, has died.

Nimoy, logical on screen and off, died at his home on Friday at the age of 83.

Nimoy’s wife Susan confirmed that the actor died of end-stage chronic obstructive pulmonary disease, an illness Nimoy had been battling for years.

Even through illness, Nimoy was a prolific tweeter. And his very last tweet is painfully beautiful.

“A life is like a garden. Perfect moments can be had, but not preserved, except in memory. LLAP.”

A life is like a garden. Perfect moments can be had, but not preserved, except in memory. LLAP

— Leonard Nimoy (@TheRealNimoy) February 23, 2015

“Hi all, as you all know, my Grandpa passed away this morning at 8:40 from end-stage chronic obstructive pulmonary disease. He was an extraordinary man, husband, grandfather, brother, actor, author-the list goes on- and friend. Thank you for the warm condolences. May you all LLAP,” said Nimoy’s grandchild in a tweet.

Leonard Nimoy 1931-2015 Read: http://t.co/pw7zYRRlts

— Leonard Nimoy (@TheRealNimoy) February 27, 2015

This famous scene, both touching and saddening, is being passed around the internet today:

His Star Trek co-star, William Shatner, has issued a statement saying “I loved him like a brother. We will all miss his humor, his talent, and his capacity to love.”

RIP, Leonard Nimoy. You lived long and prospered.

Image via Leonard Nimoy, Twitter