... if prudence depends upon experience, to whom is the honor of         
that name more proper? To the wise man, who partly out of modesty           
and partly distrust of himself, attempts nothing; or the fool, whom         
neither modesty which he never had, nor danger which he never               
considers, can discourage from anything? 
<a href="http://www.ul.cs.cmu.edu/books/ErasmFolly/folly.txt"><b>In praise 
of Folly</b></a>, 1508.