Ideas govern the world, or throw it into chaos.
All good intellects have repeated, since Bacon's time, that there can be no real knowledge but which is based on observed facts.
The word right should be excluded from political language, as the word cause from the language of philosophy.
The universe displays no proof of an all-directing mind.
To understand a science it is necessary to know its history.
Men are not allowed to think freely about chemistry and biology: why should they be allowed to think freely about political philosophy?