Art is never chaste. It ought to be forbidden to ignorant innocents, never allowed into contact with those not sufficiently prepared. Yes, art is dangerous. Where it is chaste, it is not art.
Clouds come floating into my life, no longer to carry rain or usher storm, but to add color to my sunset sky.
Even Hitler didn't wake up going, 'let me do the most evil thing I can do today.' I think he woke up in the morning and using a twisted, backwards logic, he set out to do what he thought was 'good'
Progressive art can assist people to learn not only about the objective forces at work in the society in which they live, but also about the intensely social character of their interior lives. Ultimately, it can propel people toward social emancipation.
Variation does not mean evolution. If an artist varies his mode of expression this only means that he has changed his manner of thinking, and in changing, it might be for the better or it might be for the worse.