Despotism can do without faith but freedom cannot.

Rulers who destroy men's freedom commonly begin by trying to retain its forms. ... They cherish the illusion that they can combine the prerogatives of absolute power with the moral authority that comes from popular assent.

The most durable monument of human labor is that which recalls the wretchedness and nothingness of man.

In the United States, if a political character attacks a sect, this may not prevent even the partisans of that very sect, from supporting him; but if he attacks all the sects together, every one abandons him and he remains alone.

I am obliged to confess that I do not regard the abolition of slavery as a means of warding off the struggle of the two races in the Southern states. The Negroes may long remain slaves without complaining; but if they are once raised to the level of freemen, they will soon revolt at being deprived of almost all their civil rights; and as they cannot become the equals of the whites, they will speedily show themselves as enemies.

There are many men of principle in both parties in America, but there is no party of principle.

Muhammad brought down from heaven and put into the Koran not religious doctrines only, but political maxims, criminal and civil laws, and scientific theories. The Gospels on the other hand, deal only with the general relations between man and God and between man and man. Beyond that, they teach nothing and do not oblige people to believe anything. That alone, among a thousand reasons, is enough to show that Islam will not be able to hold its power long in ages of enlightenment and democracy, while Christianity is destined to reign in such ages, as in all others.