Extremism in defense of liberty is not a vice, but I denounce political extremism, of the left or the right, based on duplicity, falsehood, fear, violence and threats when they endanger liberty.

I would remind you that extremism in the defense of liberty is no vice! And let me remind you also that moderation in the pursuit of justice is no virtue.

Extremism in the defense of liberty is no vice. And moderation in the pursuit of justice is no virtue.

Extremism in the defense of liberty is no vice; moderation in the pursuit of justice is no virtue.

An airplane should never lean too much to the left or the right, because it puts every passenger into a panic and fear. Politics are much the same. Better to be balanced on both sides than to fly on a crazy angle.

[PHILADELPHIA (CNN) -- Accepting the Republican vice presidential nomination Wednesday night, former Defense Secretary Dick Cheney looked ahead to the moment President Clinton leaves office, saying the eight years of the Clinton administration were marked by] little purpose ... repair what has been damaged.