I want to translate a short joke into English. The result doesn't sound natural, though I guess the idea is pretty clear. How would you rephrase it to sound more colloquial and natural?
Two professors in a university are talking after a lecture:
- Fools! I've been explaining that thing to them over and over again. Even I could understand it finally!
(This is my first question here, and I'm sorry if such questions are not appropriate for this website.)