Justice is the means by which established injustices are sanctioned

A person is never happy except at the price of some ignorance.

We live between two dense clouds; the forgetting of what was and the uncertainty of what will be.

The man of science multiples the points of contact between man and nature.

Men are not created to know, men are not created to understand ... and our illusions increase with our knowledge.

Universal peace will be realized, not because man will become better, but because a new order of things, a new science, new economic necessities, will impose peace.

Without the Utopians of other times, men would still live in caves, miserable and naked. It was Utopians who traced the lines of the first City.....Out of generous dreams come beneficial realities. Utopia is the principle of all progress, and the essay into a better future.