To reorganize society without God or King, by the systematic culture of Humanity.

The word right should be excluded from political language, as the word cause from the language of philosophy.

Humanity is always made up of more dead than living.

To understand a science it is necessary to know its history.

All good intellects have repeated, since Bacon's time, that there can be no real knowledge but which is based on observed facts.

nd now that man's history has been for the first time systematically considered as a whole, and has been found to be, like all other phenomena, subject to invariable laws, the preparatory labours of modern Science are ended.

Men are not allowed to think freely about chemistry and biology: why should they be allowed to think freely about political philosophy?