“The human race is a race of cowards; and I am not only marching in that procession but carrying a banner.”

“The human race has only one really effective weapon and that is laughter.”

“If we would learn what the human race really is at bottom, we need only observe it in election times.”

“There are times when I would like to hang the whole human race, and finish the farce.”

“The joy of killing! the joy of seeing killing done - these are traits of the human race at large.”

“I believe I have no prejudices whatsoever. All I need to know is that a man is a member of the human race. That's bad enough for me.”

“I am not interested to know whether vivisection produces results that are profitable to the human race or doesn't...The pain which it inflicts upon unconsenting animals is the basis of my enmity toward it, and it is to me sufficient justification of the enmity without looking further.”