“I am convinced that human continuance depends entirely upon: the intuitive wisdom of each and every individual . . . the individual's integrity of speaking and acting only on the individual's own within-self-intuited and reasoned initiative . . . the individual's never joining action with others as motivated only by crowd-engendered-emotionalism, or a sense of the crowd's power to overwhelm, or in fear of holding to the course indicated by one's own intellectual convictions.”