This is a question about the impossible: the mission is to tell truth and facts, yet facts — especially social facts and norms — are interpreted, and fully distancing oneself is sometimes impossible and even unconscious. The answer is for professors to admit clearly to students that they hold personal views, then draw a distinction between objective content and subjective interpretation (which is not necessarily false). Transmitting personal opinions has real benefit — engagement, connection and the triggering of critical thinking, one of the most important skills to give students. Views must have limits, never detached from facts or scientific method — the rigor that distinguishes academia from the rest of society — but within those limits there is space and freedom of speech for personal opinion and genuine dialogue.