There is no slavery but ignorance. Liberty is the child of intelligence.

The history of man is simply the history of slavery, of injustice and brutality, together with the means by which he has, through the dead and desolate years, slowly and painfully advanced. He has been the sport and prey of priest and king, the food of superstition and cruel might. Crowned force has governed ignorance through fear. Hypocrisy and tyranny—two vultures—have fed upon the liberties of man. From all these there has been, and is, but one means of escape—intellectual development. Upon the back of industry has been the whip. Upon the brain have been the fetters of superstition. 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. Under this infamous regime the eagle of the human intellect was for ages a slimy serpent of hypocrisy.

The human race was imprisoned. Through some of the prison bars came a few struggling rays of light. Against these bars Science pressed its pale and thoughtful face, wooed by the holy dawn of human advancement. Bar after bar was broken away. A few grand men escaped and devoted their lives to the liberation of their fellows.

Only a few years ago there was a great awakening of the human mind. Men began to inquire by

what right a crowned robber made them work for him? The man who asked this question was called a traitor. Others asked by what right does a robed hypocrite rule my thought? Such men were called infidels. The priest said, and the king said, where is this spirit of investigation to stop? They said then and they say now, that it is dangerous for man to be free. I deny it. Out on the intellectual sea there is room enough for every sail. In the intellectual air there is space enough for every wing.

The man who does not do his own thinking is a slave, and a traitor to himself and to his fellow- men.

Every man should stand under the blue and stars, under the infinite flag of nature, the peer of every other man.

Standing in the presence of the Unknown, all have the same right to think, and all are equally interested in the great questions of origin and destiny. All I claim, all I plead for, is liberty of thought and expression. That is all. I do not pretend to tell what is absolutely true, but what I think is true. I do not pretend to tell all the truth.

I do not claim that I have floated level with the heights of thought, or that I have descended to the very depths of things. I simply claim that what ideas I have, I have a right to express; and that any man who denies that right to me is an intellectual thief and robber. That is all.

Take those chains from the human soul. Break those fetters. If I have no right to think, why have I a brain? If I have no such right, have three or four men, or any number, who may get together, and sign a creed, and build a house, and put a steeple upon it, and a bell in it—have they the right to think? The good men, the good women are tired of the whip and lash in the realm of thought. They remember the chain and fagot with a shudder. They are free, and they give liberty to others. Whoever claims any right that he is unwilling to accord to his fellow-men is dishonest and infamous.

Excerpted from The Liberty of Man, Woman and Child, an essay by Robert G. Ingersoll.

Robert G. Ingersoll was a noted orator of the late 1800s and an early contributor to the Truth Seeker