A major difficulty is that the answer to the Riddle of the Sphinx is partly a product of the answers that we already have given to the riddle in its various forms.
I read everything by Ian McEwan, he is so elegant. I love reading anything about Shakespeare, too. He is my first love. If I had a time machine, I would be hanging out with him.
No matter what you do, if you're trying to create something new, your environment has a massive impact on you.