We just fell back. The season of darkness is coming on. But this year, more than any I can remember, that darkness feels existential, not just seasonal. As a professor, I’ve watched it settle over my students throughout 2025 like fog. They talk about despair as if it’s wrapping its fingers around their throats. They talk about how the news makes them want to pull the covers over their heads every day. What do I say to them? Read more history. Find the lesson and the mission: the ‘20s are always terrible, so keep your eye on the prize that...