Potter Stewart (1915–1985)

“Ethics is knowing the difference between what you have a right to do and what is right to do.”

Potter Stewart (1915–1985) was an Associate Justice of the United States Supreme Court, who made major contributions to criminal justice reforms, civil rights, equal access to the courts and Fourth Amendment jurisprudence. He is probably most well-known for his statement that while hard-core pornography is hard to define, “I know it when I see it” – part of his concurring opinion in the censorship case of Jacobellis v. Ohio (1964).