Hope lies at the heart of mentoring. I was reminded of this several weeks ago when one of our students (I'll call her “Emily”) landed a great PR job despite this tough, turbulent market. Everyone was excited for her, but the real story is what Emily did next: She reached out to other students who were anxiously seeking work.

She offered boundless encouragement, reviewed résumés, helped develop contact lists, shared her interview experiences, and did what she could ...