The mind once enlightened cannot again become dark.

Panics, in some cases, have their uses; they produce as much good as hurt. Their duration is always short; the mind soon grows through them and acquires a firmer habit than before. But their peculiar advantage is, that they are the touchstone of sincerity and hypocrisy, and bring things and men to light, which might have lain forever undiscovered.

It requires but a very small glance of thought to perceive, that although laws made in one generation often continue in force through succeeding generations, yet that they continue to derive their force from the consent of the living. A law not repealed continues in force, not because it cannot be repealed, but because it is not repealed; and the non repealing passes for consent.

It can only be by blinding the understanding of man, and making him believe that government is some wonderful mysterious thing, that excessive revenues are obtained. Monarchy is well calculated to ensure this end. It is the popery of government; a thing kept up to amuse the ignorant, and quiet them into taxes.

Any system of religion that has anything in it that shocks the mind of a child, cannot be true.

It is never to be expected in a revolution that every man is to change his opinion at the same moment. There never yet was any truth or any principle so irresistibly obvious that all men believed it at once. Time and reason must cooperate with each other to the final establishment of any principle; and therefore those who may happen to be first convinced have not a right to persecute others, on whom conviction operates more slowly. The moral principle of revolutions is to instruct, not to destroy.

Man did not make the earth, and though he had a natural right to occupy it, he had no right to locate as his property in perpetuity, any part of it.