Rabbi Dr. Donniel Hartman of Shalom Hartman Institute, Jerusalem, Israel, talks about Shavuot, 6 Sivan 5769, and how it teaches us that Torah study is to remind us that ideas matter in Judaism. Jewish learning, Jewish thought, Jewish progress, Israel, monotheism - these are the ideas from Judaism that have made an impact on the world for more than 3,000 years. This video accompanies a new essay by Donniel on the importance of ideas in Judaism and a special section on the Hartman Institute website about Shavuot.