"Man is the only animal that causes pain to others for the mere pleasure of doing it."

"Life is a constant process of dying."

"The more intelligent a man is, the more he suffers."

"The greatest happiness for man is to escape the necessity of being born."

"A last trick is to become personal, insulting and rude as soon as you perceive that your opponent has the upper hand. In becoming personal you leave the subject altogether, and turn your attack on the…"