Was a neurologist and father of psychoanalysis who focused on the unconscious mind, and believed people repressing their uncomfortable thoughts was what caused mental illness. (@dok 1, 8.4.8.a)

charles darwin

sigmund freud

emile zola

wilhelm wundt

necessary and proper clause. the congress shall have power to all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states, or in any department or officer thereof.

b - those executed came from every social and economic class