Front Matter -- Preface -- Acknowledgment of Reviewers -- Dedication -- Contents -- Executive Summary -- 1 Introduction: Where We Are and Where We Can Be -- 2 Foundations: Matter, Space, and Time -- 3 How Are Matter, Space, and Time Unified? -- 4 How Did the Universe Get Going? -- 5 What Is the Nature of Dark Matter and Dark Energy? -- 6 What Are the Limits of Physical Law? -- 7 Realizing the Opportunities -- A Meeting Agendas -- B Call for Community Input -- C Project Proposals Received (Listed Chronologically) -- D Glossary and Acronyms.