Its motto is "Lux et veritas"
I believe the answer is:
yale
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">its motto is lux et veritas</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for yale that I've seen before include "US Ivy League college" , "security device" , "University in USA" , "American university or kind of lock" , "Mass. university" .)