Wert -- that is one of my favorite quotes. My Dad and I have a long-running joke about it.
And now that I'm 50 and he's 80, I think he is the smartest/wisest man I've ever met. I am so blessed to have him for a father.
The 'original' of the quote is usually attributed to Mark Twain but in recent years, there has been some doubt if he actually said it.
Quote:
"When I was a boy of 14, my father was so ignorant I could hardly stand to have the old man around. But when I got to be 21, I was astonished at how much the old man had learned in seven years."