It is not the idea as such which the censor attacks, whether it be heresy or radicalism or obscenity. He attacks the circulation of the idea among the classes which in his judgment are not to be trusted with the idea.

Free institutions are not the property of any majority. They do not confer upon majorities unlimited powers. The rights of the majority are limited rights. They are limited not only by the constitutional guarantees but by the moral principle implied in those guarantees. That principle is that men may not use the facilities of liberty to impair them. No man may invoke a right in order to destroy it.

The thinker dies, but his thoughts are beyond the reach of destruction. Men are mortal; but ideas are immortal.

Photographs have the kind of authority over imagination to-day, which the printed word had yesterday, and the spoken word before that. They seem utterly real. They come, we imagine, directly to us without human meddling, and they are the most effortless food for the mind conceivable.

The only feeling that anyone can have about an event he does not experience is the feeling aroused by his mental image of that event ... For it is clear enough that under certain conditions men respond as powerfully to fictions as they do to realities.

The devil is merely a fallen angel, and when God lost Satan he lost one of his best lieutenants.

Once you touch the biographies of human beings, the notion that political beliefs are logically determined collapses like a pricked balloon.