Leonard Nimoy was saying goodbye for months on Twitter

Leonard Nimoy, the beloved actor best known for his role as Spock on Star Trek, died Friday morning at the age of 83.

His Twitter feed suggests that he had been saying goodbye to his fans for months, with sentimental and instructive missives that often ended with the acronym LLAP, which stands for "live long and prosper" — a reference to the show that made him famous.

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

— Leonard Nimoy (@TheRealNimoy) February 23, 2015

Sometimes he gave well wishes to others and shared his own poetry:

So grateful for blessings. Wish the same to all. LLAP

— Leonard Nimoy (@TheRealNimoy) January 1, 2015

I will be sharing my poetry. Today's is, "You and I have Learned," which is in my book, These Words Are for You. LLAP pic.twitter.com/CsHAtmtDnz

— Leonard Nimoy (@TheRealNimoy) February 22, 2015

But perhaps his most meaningful recent tweet, from January, appears to be a reference to the smoking-related chronic obstructive pulmonary disease that would take his life:

Don't smoke. I did. Wish I never had. LLAP

— Leonard Nimoy (@TheRealNimoy) January 11, 2015

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