I am of the nature to die. There is no way to escape death.
And for an Epicurean take on death (which I missed in the above post):
"We are born only once and cannot be born twice, and must forever live no more. You don't control tomorrow, yet you postpone joy. Life is ruined by putting things off, and each of us dies without truly living." - VS14
This could be use some re-wording, so it sounds more upbeat, lol...
...perhaps this:
We are born only once, and we cannot predict when we will die - don't postpone your joy or put off truly living this life.
(Maybe I'll need to work on paraphrasing that one a bit better).