sifting and winnowing
... that the University of Wisconsin–Madison has a tradition of encouraging "that continual and fearless sifting and winnowing by which alone the truth can be found"?
... that the <a href="./University_of_Wisconsin–Madison" id="mwCFg" rel="mw:WikiLink" title="University of Wisconsin–Madison">University of Wisconsin–Madison</a> has a tradition of encouraging "that continual and fearless <b id="mwCFk"><a href="./Sifting_and_winnowing" id="mwCFo" rel="mw:WikiLink" title="Sifting and winnowing">sifting and winnowing</a></b> by which alone <a href="./Academic_freedom" id="mwCFs" rel="mw:WikiLink" title="Academic freedom">the truth can be found</a>"?