What arguments did thurgood marshall use in case of brown v. board of education of topeka?

In Brown v. Board of Education, Thurgood Marshall argued that segregation in public schools created a sense of inferiority among African American children, which violated the Equal Protection Clause of the Fourteenth Amendment. He presented psychological studies, including the Doll Test, demonstrating that segregation harmed students' self-esteem and development. Marshall contended that "separate but equal" was inherently unequal, as segregated schools were fundamentally unequal in quality and resources. His arguments emphasized the need for integration to ensure equal educational opportunities for all children.