Question

Read the lines from "A Psalm of Life."

Answer 1

Great deeds are remembered in history ; The author mentions "footprints in the sand" which fundamentally signifies remembrance or a mark left behind after your absence.  

Answer 2

great deeds are remembered in history.

The lines speak of "great men" who leave "footprints in the sands of time." A footprint in the sand is a mark that is left behind, or an impact a person has had on the world or society. Think of a great man like Martin Luther King Jr.. He has left "footprints in the sands of time." His great deed have made such a strong impact in history that he will always be remembered.