Michael Bloomberg and Charles Koch:

During college commencement season, it is traditional for speakers to offer words of advice to the graduating class. But this year the two of us—who don’t see eye to eye on every issue—believe that the most urgent advice we can offer is actually to college presidents, boards, administrators and faculty.

Our advice is this: Stop stifling free speech and coddling intolerance for controversial ideas, which are crucial to a college education—as well as to human happiness and progress.