Nothing has been left undone by the enemies of freedom. Every art and artifice, every cruelty and outrage has been practiced and perpetrated to destroy the rights of man. In this great struggle every crime has been rewarded and every virtue has been punished. Reading, writing, thinking and investigating have all been crimes.
Every science has been an outcast.
All the altars and all the thrones united to arrest the forward march of the human race. The king said that mankind must not work for themselves. The priest said that mankind must not think for themselves. One forged chains for the hands, the other for the soul.

The Liberty of Man, Woman and Child (1877)