It is they [men of science] who hold the secret of the mysterious property of the mind by which error ministers to truth, and truth slowly but irrevocably prevails. Theirs is the logic of discovery, the demonstration of the advance of knowledge and the development of ideas, which as the earthly wants and passions of men remain almost unchanged, are the charter of progress, and the vital spark in history.

It is bad to be oppressed by a minority, but it is worse to be oppressed by a majority.

To develop and perfect and arm conscience is the great achievement of history.

Far from being the product of a democratic revolution and of an opposition to English institutions, the constitution of the United States was the result of a powerful reaction against democracy, and in favor of the traditions of the mother country.

I saw in States' rights the only availing check upon the absolutism of the sovereign will, and secession filled me with hope, not as the destruction but as the redemption of Democracy.... Therefore I deemed that you were fighting the battles of our liberty, our progress, and our civilization, and I mourn for the stake which was lost at Richmond more deeply than I rejoice over that which was saved at Waterloo.

Whenever a single definite object is made the supreme end of the State, be it the advantage of a class, the safety of the power of the country, the greatest happiness of the greatest number, or the support of any speculative idea, the State becomes for the time inevitably absolute. Liberty alone demands for its realization the limitation of the public authority, for liberty is the only object which benefits all alike, and provokes no sincere opposition.

Authority that does not exist for Liberty is not authority but force.