The identity that we ascribe to things is only a fictitious one, established by the mind, not a peculiar nature belonging to what we’re talking about.

All knowledge resolves itself into probability. ... In every judgment, which we can form concerning probability, as well as concerning knowledge, we ought always to correct the first judgment deriv'd from the nature of the object, by another judgment, deriv'd from the nature of the understanding.

An established government has an infinite advantage, by that very circumstance of its being established--the bulk of mankind being governed by authority, not reason, and never attributing authority to anything that has not the recommendation of antiquity.

Human Nature is the only science of man; and yet has been hitherto the most neglected.

It seems then, say I, that you leave politics entirely out of the question, and never suppose, that a wise magistrate can justly be jealous of certain tenets of philosophy, such as those of Epicurus, which, denying a divine existence, and consequently a providence and a future state, seem to loosen, in a great measure, the ties of morality, and may be supposed, for that reason, pernicious to the peace of civil society.

Liberty is a blessing so inestimable, that, wherever there appears any probability of recovering it, a nation may willingly run many hazards, and ought not even to repine at the greatest effusion of blood or dissipation of treasure.

A man who has cured himself of all ridiculous prepossessions, and is fully, sincerely, and steadily convinced, from experience as well as philosophy, that the difference of fortune makes less difference in happiness than is vulgarly imagined; such a one does not measure out degrees of esteem according to the rent-rolls of his acquaintance. ... his internal sentiments are more regulated by the personal characters of men, than by the accidental and capricious favors of fortune.