In the parsha of Emor, we learn about many rules of kohanim including that their slaves can eat terumah. Since we don't give terumah to kohanim today and we don't have slaves, what can we possibly learn from this?

According to our Sages, eating without a blessing is like misappropriating consecrated property. How is it possible that making a blessing can change this status?

To understand this, we have to answer the question: With all his money, what is the only way that Bill Gates could ever get to fly an F-15?

Based on Sefer HaSichos 5751 vol. 2, p. 847.