Sociocultural environments prompt us to notice and mark certain differences over others. This book investigates five paradoxes in the discourses and practices around such differences: the paradox of mixing, standardization, narrative, proximity, and tolerance. Drawing on the notion of unit thinking, it explores how perceived differences emerge fluidly in specific contexts. Through critical analyses of race studies, language education, global education/study abroad, and volunteer/service work, the book examines how these fields build on or capitalize on pre-conceived differences. It opens up discussions for new understandings of differences that challenge essentialist framings and inform alternative practices.