Gotta try to stay above water y'know
Just stay busy, stay working
Puff told me like
The key to this joint
The key to staying on top of things
Is treat everything like it's your first project, nomsayin'
Like it's your first day like back when you was an intern
Like, that's how you try to treat things like, just stay hungry

from Jay Z – My 1st Song Lyrics on Rap Genius

Meaning

Jay uses a Biggie Small interview in the intro to pay homage to his friend and to keep the Brooklyn legacy alive. After Notorious died, Jay stepped up and claimed the east coast crown. With these words he wants to remember that even if he made it to the top, he still remembers about the beginning and wants to keep innovating. As Steve Jobs would say:

Stay hungry, stay foolish

To help improve the meaning of these lyrics, visit “My 1st Song” by Jay Z Lyrics and leave a comment on the lyrics box