'You are old, father William,' the young man said,
'And your hair has become very white;
And yet you incessantly stand on your head -
Do you think, at your age, it is right?'
'In my youth,' father William replied to his son,
'I feared it would injure the brain;
But now that I'm perfectly sure I have none,
Why, I do it again and again.'
'You are old,' said the youth, 'as I mentioned before,