What reason does Warren give for believing that "separate but equal" does not give minority children equal educational opportunities? The findings of the court in Plessy v. Ferguson regarding equal educational facilities the reduced effects of segregation when it is sanctioned by federal regulations the findings that a sense of inferiority affects the motivation to learn the differences in educational and mental development in public and private schools

Warren believes that "separate but equal" does not give minority children equal educational opportunities due to the findings that indicate that a sense of inferiority affects the motivation to learn.

This is part of Chief Justice Warren's opinion of the Brown v. Board of Education case, for which the Justice ended up deciding that racial segregation of children in public schools was unconstitutional. According to the Justice, the "separate but equal" doctrine did not mean equality for everyone at all. Warren, who delivered the opinion of the Court, believed that segregation of white and colored children in public schools had an important negative effect upon the colored children, which, at the same time, ended up affecting their mental development and; therefore, their performance at school.