Footprints on the Sands by Henry Wadworth Longfellow

The lives of great men all remind us
That we can make our lives sublime
And, departing, leave behind us
Footprints on the sands of time

Footprints that, perhaps another
Sailing o'er life's solemn main
A forelorn and shipwrecked brother
Seeing shall take heart again

Let us then, be up and doing
With a heart for any fate
Still achieving, still pursuing
Learn to labor and to wait.

from the "Psalm of Life"

Adversus Trinitas

"...unless you believe that I am he you will die in your sins." (John 8:24 ESV)