Leonard Nimoy, Spock in 'Star Trek' Series, Dies at 83

Leonard Nimoy, the actor behind one of pop culture’s most famous and distinctive fictional characters, the half-human, half-alien Mr. Spock in the “Star Trek” television series and films, has died.

“A life is like a garden,” Nimoy said on Twitter on Feb. 23. “Perfect moments can be had, but not preserved, except in memory. LLAP.” The abbreviation stands for “live long and prosper,” a Vulcan greeting.