We shall surely die:
Must we needs grow old?
Grow old and cold,
And we know not why?

O, the By-and-By,
And the tale that’s told!
We shall surely die:
Must we needs grow old?

Grow old and sigh,
Grudge and withhold,
Resent and scold?…
Not you and I?
We shall surely die!

William Ernest Henley

http://www.poemhunter.com/poem/we-shall-surely-die/