[28] Very naturally, therefore, justice will follow which purifies every evil disposition of the mind, for it is said, "Thou shalt utterly get rid of the wicked man," not out of the city, or out of the country, or out of the nation, but "out of yourselves." [12] For there are many faulty and blameable thoughts lurking in us, and taking up their abode in the recesses of our hearts, which, since they are incurable, it is necessary to eradicate and destroy.