It's often interpreted as a statement of immortality, either through the legacy one leaves behind or through a belief in an afterlife.
Here's a breakdown:
* Non: Not
* Omnis: All, whole
* Moriar: I shall die
The phrase is most famously associated with the Roman poet Horace, who included it in his *Odes*. He used it to express his belief that his poetry would outlive him, ensuring his memory and fame even after his death.
It's a powerful statement about the enduring nature of art and the impact humans can have on the world, even after their physical lives are over.