Random ZwikiTips

 <dtml-let quotes="_.string.split(ZwikiTips.raw,'\n\n')">
 <dtml-var "wikilink(stxToHtml(applyLineEscapesIn(quotes[_.whrandom.randint(1,_.len(quotes)-1)])))">
 </dtml-let>

All Quotes (separated by hr)

Use this for validating your tips page. - problem w/ applying formatting.
:
 <dtml-let quotes="_.string.split(ZwikiTips.raw,'\n\n')">
   <dtml-in quotes>
        <dtml-var sequence-item><hr/>
   </dtml-in>
 </dtml-let>

...And to humble yourself before the dtml-gods;-), chew on this one, courtesy of ZopeWiki:RandomTip :

 <dtml-try>
<!-- display a random tip/quote -->
  <dtml-let 
   pages="[
   ZopeWikiTips,
   ZopeTips,
   ZopeQuotes,
   ]"
   page="pages[_.whrandom.randint(0,_.len(pages)-1)]"
   pagename="page.pageName()"
   tips="page.src().split('\n\n')"
   choice="_.whrandom.randint(0,_.len(tips)-1)"
   tip="tips[choice]"
   >
    <em><dtml-var "renderLinksIn(tip)"> <a href="<dtml-var "page.pageUrl()">">*</a></em>
  </dtml-let>
<dtml-except>
</dtml-try>