This is a traditional greeting of Vulcan people in Star Trek, which is often used with salute.
Example:
In fact, as Spock would say, may they all live a long life and prosper.
In fact, as Spock would say, maybe they will live forever and prosper.
Longevity and prosperity: investing in happiness, health and wealth after retirement.
The law of a successful life: happiness, health and wealth investment after retirement