"Live long and prosper" is a popular science-fiction blessing and greeting from the Star Trek franchise, used to wish someone a long, healthy, and successful life.
Meaning and Response
The Greeting: It expresses a desire for the other person to enjoy longevity and well-being.
The Traditional Response: The standard reply to the phrase is "Peace and long life" (or sometimes linked to the Hebrew-inspired sentiment shalom aleichem, meaning "peace be upon you").
The Hand Gesture: It is always accompanied by the Vulcan salute—a raised hand with the palm facing forward, the thumb extended, and the fingers parted in a "V" shape between the middle and ring fingers.
Origin and Cultural Roots
Star Trek Creation: The phrase was written by science-fiction author Theodore Sturgeon and
first introduced through the alien Vulcan character Mr. Spock (played by Leonard Nimoy) in the 1967 Star Trek: The Original Series episode "Amok Time".
Jewish Priestly Blessing: Leonard Nimoy, who was Jewish, adapted the hand gesture from the Birkat Kohanim (the Jewish Priestly Blessing) he witnessed in an Orthodox synagogue during his childhood.
The Letter Shin: The split-finger hand shape mirrors the Hebrew letter Shin (ש), which has three upward strokes and is the first letter in sacred Hebrew words like Shaddai (Almighty God) and Shalom (peace).
