Some time when you're feeling important
Some time when your egos in bloom
Some time when you take it for granted
You're the best qualified man in the room
Some time that you think that you're going
Would leave an un-fillable hole
Just follow these simple instructions
And see how they humble your soul
Take a bucket and fill it with water
Put your hands in it up to your wrists
Pull them out and the hole that remains
Is the measure of how you'll be missed
You may stir up the waters galore
But stop and you'll find in a minute
That it looks just the same as before
The moral of this is quite simple
Do just the best that you can
Be prod of yourself but remember
There is no indispensable man
Author Unknown