It should be our endeavor to cultivate the peace and friendship of every nation, even of that which has injured us most.

Christian creeds and doctrines, the clergy's own fatal inventions, through all the ages has made of Christendom a slaughterhouse, and divided it into sects of inextinguishable hatred for one another.

Question with boldness even the existence of a god.

There is a debt of service due from every man to his country, proportioned to the bounties which nature and fortune have measured to him.

From forty years' experience of the wretched guess-work of the newspapers of what is not done in open daylight, and of their falsehood even as to that, I rarely think them worth reading, and almost never worth notice.

No knowledge can be more satisfactory to a man than that of his own frame, its parts, their functions and actions.

I never saw an instance of one or two disputants convincing the other by argument.