"Legislation is powerless to eradicate racial instincts or to abolish distinctions based on physical differences, and the attempt to do so can only result in accentuating the differences of the present situation. If the civil and political rights of both races be equal, one cannot be inferior to the other civilly or politically. If one race be inferior to the other socially, the Constitution of the United States cannot put them on the same plane." Majority opinion from Plessy v. Ferguson (1896) - Justice Henry Brown The opinion from which this is an excerpt created what Constitutional doctrine?

"Everyone knows that the statute in question had its origin in the purpose, not so much to exclude white persons from railroad cars occupied by blacks, as to exclude colored people from coaches occupied by or assigned to white persons." "There is no caste here. Our Constitution is color-blind, and neither knows nor tolerates classes among citizens. In respect of civil rights, all citizens are equal before the law." Minority opinion from Plessy v. Ferguson (1896) John Marshal Harlan Justice Harlan's opinion is more in line with what later Supreme Court decision?