There is a physics professor who, one day, gets drunk and starts a conversation with an English teacher saying that he can bring back the dead. I believe he said he tried... Shakespeare? Whoever it was, the professor said that he/she wanted to know how the future was going. I also vaguely remember the professor saying that he put the person he brought back from the dead in a class about themself and they were flunked!
I'm 80% sure that this is either a Ray Bradbury or Isaac Asimov work. Any help is appreciated!