Positivism is a theory of knowledge according to which the only kind of sound knowledge available to human kind is that if science grounded in observation.

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

Nothing is destroyed until it is replaced.

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

If we do not allow free thinking in chemistry or biology, why should we allow it in morals or politics?

Language forms a kind of wealth, which all can make use of at once without causing any diminution of the store, and which thus admits a complete community of enjoyment; for all, freely participating in the general treasure, unconsciously aid in its preservation.

Induction for deduction, with a view to construction.