Old minds are like old horses; you must exercise them if you wish to keep them in working order.

It is an observation of one of the profoundest inquirers into human affairs that a revolution of government is the strongest proof that can be given by a people of their virtue and good sense.

The government of the United States of America has in itself no character of enmity against the laws, religion or tranquility of Muslims.

We must not then depend alone upon the love of liberty in the soul of man for its preservation.

I do not like the reappearance of the Jesuits... Nevertheless, we are compelled by our system of religious toleration to offer them an asylum.

No good government but what is republican... the very definition of a republic is 'an empire of laws, and not of men.'

When philosophic reason is clear and certain by intuition or necessary induction, no subsequent revelation supported by prophecies or miracles can supersede it.