Why Tipping Companions Will Buy You Nothing: On Generosity, Kant, and the German railway

 A close friend of mine recently sought my advice as he prepared to meet a companion for the first time. He wanted to know how to ensure the experience was enjoyable for both him and his guest. I was genuinely pleased he turned to me—it felt exciting, like watching someone step into a new world with trust in your guidance. “Ask me anything,” I told him. “I’ll share whatever you need to know.”