Live long and prosper.

What does “Live long and prosper” mean?

I wish you a long and successful life. It is the famous greeting from Star Trek, and people use it as a friendly, slightly nerdy goodbye.

• You are the best./ju ɑːr ðə best/
• You deserve better./ju dɪˈzɜːrv ˈbetər/
• Stay out of it!/steɪ aʊt əv ɪt/
• Go big or go home./ɡoʊ bɪɡ ɔːr ɡoʊ hoʊm/
• You had me at hello./ju hæd mi æt həˈloʊ/
• You are my priority./ju ɑːr maɪ praɪˈɔːrəti/
• I'm over you./aɪm ˈoʊvər ju/
• Watch your six!/wɑːtʃ jʊr sɪks/