This document discusses social differences and divisions. It begins by defining social differences as differences based on attributes like gender, physical characteristics, socioeconomic status, and personal choices. While social differences exist, they do not always lead to divisions. Divisions occur when one difference, like religion or language, becomes more important than others and people strongly identify with one group. Overlapping differences are more likely to cause tensions, while cross-cutting differences allow people to belong to multiple groups. The expression of social divisions in politics can further intensify divisions and potentially lead to conflicts, but in a democracy some political expression is normal if handled properly.