Lives of great men all remind us
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 forlorn 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.
---Henry Wadsworth Longfellow
I guess the key point here is, "Learn to labor and to wait".