John Baldessari, the 79-year-old conceptualist, has spent more than four DECADES making laconic, IRONIC CONCEPTUAL art-about-art, both GOOD and bad.

With all the MAIN CHARACTERS that I write, it's always very important to me that they have GOOD and bad aspects of their PERSONALITY. It's important to me that they're COMPLICATED and that they're human.

I have to ADMIT, I GO through phases of being good and bad. When I'm being good, I go to the gym THREE to FOUR times a week. I do much BETTER in a class with other people. I like aerobics and circuit training.

Everybody's a MIX of GOOD and bad choices that they MAKE.

Why, we have invented the whole machinery of the SUPERNATURAL, with its unseen spirits and powers, good and BAD, to account for THINGS, because we found the universal everyday nature too cheap, too COMMON, too vulgar.

The good and bad THING about online trolling: it's not on the street, and it's not on the street! The good: NOTHING physical erupts; the bad: there are no brakes to STOP it.

I don't REALLY think about having had a hard LIFE. It was just my life, and it's all I knew. It MADE me who I am - all the good and bad - and it's where all of the songs on Here For The Party CAME from. I've LIVED them all.

I talked to the players and tried to make them AWARE of what was GOOD and BAD, but I didn't TRY to run their lives.

One reason why it has become harder to PROMOTE the beneficial SIDE of emotions such as anger is that the moral vocabulary of GOOD and bad has been replaced by the SELF-HELP lexicon of positive and negative thinking.

You don't have people who are MONSTERS and only do BAD. There's good and bad for everybody. It's all a spectrum.