Nothing is destroyed until it is replaced.
Everything is relative; and only that is absolute.
Woman is the most moral element in all humanity.
In mathematics we find the primitive source of rationality; and to mathematics must the biologists resort for means to carry out their researches.
The word right should be excluded from political language, as the word cause from the language of philosophy.
Men are not allowed to think freely about chemistry and biology: why should they be allowed to think freely about political philosophy?