Summary of " a Darwinian Theory of Beauty"

In the presentation of a Darwinian Theory of Beauty, the speaker Denis Dutton talked about the complicated subject beauty.There are different kinds of things which considered beautiful, and the speaker provided the most powerful theory of beauty which comes from Charles Darwin. People may think that beauty depends on the eye of the beholder. Although there are many different kinds of art in the world, they all share something in common. By reconstructing a Darwinian evolution theory, we can explain this commonality.  The speaker believes that the experience of beauty with its emotional intensity and joy, belongs to gradually developed human psychology. The experience of beauty is one component of Darwinian adaptions. There are two main important parts in evolution--natural selection and sexual selection, and they play very different roles.  Neither natural beauty nor artistic beauty is cultural. In our aesthetic desires, we find beauty in something done with a good skill. So beauty is not in the eye of people who look at it, but embedded in our mind, created by our ancestors and last as long as humanity continues.