It Couldn't Be Done

A quick excerpt from the poem "It Couldn't Be Done":

Somebody said that it couldn't be done
But he with a chuckle replied
That "maybe it couldn't," but he would be one
Who wouldn't say so till he tried.
So he buckled right in with the trace of a grin
On his face. If he worried he hid it.
He started to sing as he tackled the thing
That couldn't be done, and he did it!

Edgar Albert Guest (1881-1959) is the poet. You can find more on him here.