Denis Dutton

Denis Dutton's quote "We find beauty in something done well" illustrates his argument that the human concept of beauty is not merely a product of cultural conditioning but is a deeply entrenched aesthetic sense that has emerged from our collective evolutionary biology. He provides compelling evidence that our experience of beauty is an adaptive effect caused by natural and sexual selection. He gives the example of the peacock's tail feathers as beauty that is non-utilitarian but is directly related to sexual selection.
As a scuba diver, I've seen an incredible assortment of tropical reef fish that look like they could have been hand painted by the likes of Picasso, Joan Miro or Paul Klee. Upon closer inspection however it is evident that their beauty is never superfluous or a product of "art for arts sake"  but is indeed a product of sexual selection and/or a means to avoid predation.
There are many cultural theorists and anthropologists that would argue that beauty is a product of  cultural conditioning; aristocratic Japanese women blackening their teeth in feudal-era Japan being one example. One way of looking at this difference of opinions might be to categorize culturally conditioned beauty as "beauty" and universal beauty as "Beauty" much in the way Buddhists talk about the "self" vs the "Self."
I recently returned from one week in Mazatlan, Mexico. I had a beach-front room on the 28th floor of the El Moro hotel. Every evening about 1/2 hour before sunset I would watch people gather on the beach to view the spectacularly "Beautiful" sunset. These people hailed from all parts of the world. They all seemed to be equally impressed with and inspired by the "puesta del sol."
One thing that Dutton doesn't mention and that is perhaps a weakness in his Ted Talk is "beauty vs the sublime." When he says "We find beauty in something well done" he makes a good point but it comes up a little short. I would add that we find "Beauty" in something so breathtakingly well done that it becomes a sublime experience. That, I believe is truly universal.