I should . . . prefer swallowing one incomprehensibility rather than two. It requires one effort only to admit the single incomprehensibility of matter endowed with thought, and two to believe, first that of an existence called spirit, of which we have neither evidence nor idea, and then secondly how that spirit, which has neither extension nor solidity, can put material organs into motion.

Pride costs us more than hunger, thirst, and cold.

A single good government is a blessing to the whole earth.

If there be any among us who wish to dissolve the Union or to change its republican form, let them stand undisturbed, as monuments of the safety with which error of opinion may be tolerated where reason is left free to combat it.

Dependence leads to subservience.

A mind always employed is always happy.

I recoil with horror at the ferociousness of man. Will nations never devise a more rational umpire of differences than force? Are there no means of coercing injustice more gratifying to our nature than a waste of the blood of thousands and of the labor of millions of our fellow creatures?