This book chapter advances SDGs 2, 12, and 15 by explaining how those engaged in agriculture must begin to examine and expand agriculture’s ethical horizon—the full range or widest limit of our perception, interest, appreciation, knowledge, and experience. It is necessary to explore agriculture’s intellectual horizon, because our unexamined, ethical position, may limit what agriculture’s ethical horizon defines. This book will encourage those involved in all phases of the agricultural enterprise to initiate and continue discussion of agriculture’s ethical foundation.