“A man's ego is the fountainhead of human progress.”
“What if imagination and art are not frosting at all, but the fountainhead of human experience?”
“The human mind is always making progress, but it is a progress in spirals.”
“Guilt's just your ego's way of tricking you into thinking that you're making moral progress. Don't fall for it, my dear.”
“The chief obstacle to the progress of the human race is the human race. ”
“knowledge is the cause of human progress.”