Those who expect to reap the blessing of freedom must undertake to support it.

When men yield up the privilege of thinking, the last shadow of liberty quits the horizon.

When an objection cannot be made formidable, there is some policy in trying to make it frightful; and to substitute the yell and the war-whoop, in the place of reason, argument and good order.

The circumstances of the world are continually changing, and the opinions of men change also; and as government is for the living, and not for the dead, it is the living only that has any right in it. That which may be thought right and found convenient in one age, may be thought wrong and found inconvenient in another. In such cases, who is to decide, the living, or the dead?

The mind, in discovering truths, acts in the same manner as it acts through the eye in discovering objects; when once any object has been seen, it is impossible to put the mind back to the same condition it was in before it saw it.

There is something absurd in supposing a continent to be perpetually governed by an island.

Universal empire is the prerogative of a writer. His concerns are with all mankind, and though he cannot command their obedience,he can assign them their duty. The Republic of Letters is more ancient than monarchy, and of far higher character in the world than the vassal court of Britain.