The passage of time is a continuing thing. At 18, you're going to live forever, and you are definitely not at 52, so that is a recurring topic. I still think it's the main stuff.
“Compared to dancing, films seemed to me to be the work of lay bums. There was no physical pain; it was enough to say and imagine what was in the script. It was very easy for me.”
“The real danger is not that computers will begin to think like men, but that men will begin to think like computers.”