The best scientists are often the ones who are plainest about their non-scientific interests. Feynman's intro physics books are the best of all physics intros in part because he talks freely about beauty: Here's a beautiful theorem. Here's a beautiful fact. My own small contributions to software were guided at every step by my search for beautiful design. More important, as I argue in my recent book on the spectrum of consciousness: who knows most about the human mind? Today it's John Coetzee, Philip Roth, Cynthia Ozick. That’s why the book turns to novelists and poets at least as often as to neurobiologists and psychologists. I've had far more sustained, intense reaction to my one novel (1939) than to anything else I've published.
The short stories I've published over the years in Commentary have been read by maybe six people each; but the reaction from readers of those stories, in seriousness, intelligence, and depth, swamps the reaction to any science, tech, or political piece I've published.

From 20 ideas from David Gelernter.

Beauty is objective.  
Take any civilization, ask for its artistic masterpieces; today, they are almost guaranteed to be valuable all over the world. There’s almost nothing less subjective than the sense of beauty.

What replaces religion for teaching ethics?

It used to be that nearly all American children were reared as Christians or Jews. In the process they were given comprehensive ethical views, centering on the Ten Commandments and the “golden rule,” and God’s requirements as spelled out by the prophet Micah: “Only to do justice, and love mercy, and walk humbly with your God.”
As a result American were not paragons; but they had a place to start.  Today many or most children in the intellectual or left-wing part of the nation are no longer reared as Christians or Jews. What ethical laws are they taught? Many on the left say “none, and it doesn’t matter”—a recipe for one of the riskiest experiments in history.  
The left, and my colleagues in the intelligentsia, need to come to terms with this issue. Rear your children to be atheists or agnostics—fine. But turning them loose on the world with no concept of right and wrong is unacceptable. You might well say that Jewish and Christian ethical teaching managed to accomplish remarkably little; but if you believe that, and propose to teach your children even less than the bare bones that proved (you say) so inadequate, then your irresponsibility is obvious. Choose the ethical code you like, but choose something and make sure they know it.

I did a year of policy debate in high school. The topic we debated that year nationally was whether the United States should increase space travel. The entire format is too specifically niche, and winning relied too much on speaking at unreasonably high speeds, past the point of comprehension, flooding your opponent with too many points to counter. It was interesting to learn, throughout the season, of what cases the top teams in the state were building and to try to find vulnerabilities in those cases through research and logic, but in hindsight, teaching kids to defend a broader set of topics across philosophy, logic, and ethics would've been a more useful exercise.

I'd enjoy a site that posted one such debate each week, with two leading thinkers trading blows in written form, with judges, or perhaps the public, voting on a winner at the end. More interesting might be to let a coin flip determine who'd argue the pro or con side.