Iananno Manning - A Simple Limerick 'College Professor'

There Once was an Old Man From Esser <br />His Knowledge Grew Lesser and Lesser <br />It at Last Grew to Small <br />He Knew Nothing at All <br />Now Hes a College Professor.<br /><br />Iananno Manning<br /><br />http://www.poemhunter.com/poem/a-simple-limerick-college-professor/