Think for yourself and let others enjoy the privilege of doing so too.

Dare to think for yourself.

The country was in peril; he was jeopardizing his traditional rights of freedom and independence by daring to exercise them.

Freedom of speech is unnecessary if the people to whom it is granted do not think for themselves.

I disapprove of what you say, but I will defend to the death your right to say it.

Ideas are far more powerful than guns. We don't let our people have guns. Why should we let them have ideas?