I played upon the beach;

Right near the water I was.

I dug into the sand;

And built a wall so sound.

I built it high and long;

And thick enough I thought it would hold.

The waves swept in and beat against the wall;

But bravely it stood and did not fall.

Foolishly I cried “My walls are stronger than you wave”;

And the waves swept in again and knocked the wall right down.