"The secret of a joyful life is to live dangerously."

"Man has been educated by woman. It is woman who has spoiled him."

"The most common lie is that with which one lies to oneself; lying to others is relatively an exception."

"The strongest and most evil spirits have so far advanced humanity the most: they have always rekindled the slumbering passions."

"In individuals, insanity is rare; but in groups, parties, nations and epochs, it is the rule."