We could tell them [alien civilization] things that we have discovered in the realm of mathematical physics, but there is stuff that I would like to know. There are some famous problems like how to bring gravitation and quantum physics… — Paul Davies Copy Share Image
![“We could tell them [alien civilization] things that we have discovered in the realm of mathematical physics, but there is stuff that I would like to know. There are some famous problems like how to bring gravitation and quantum physics together, the long-sought-after theory of quantum gravity. But…” quote by Paul Davies](https://sms4smile.com/quotes/img-quotes/044/paul-davies-3810_aliens_we-could-tell-them-alien-civilization-th_2442959.jpg)