<i>But when I got to be twenty-one, I was astonished at how much the old man had learned in seven years.</i><p><a href="http:&#x2F;&#x2F;quoteinvestigator.com&#x2F;2010&#x2F;10&#x2F;10&#x2F;twain-father&#x2F;" rel="nofollow">http:&#x2F;&#x2F;quoteinvestigator.com&#x2F;2010&#x2F;10&#x2F;10&#x2F;twain-father&#x2F;</a>