Rome was not built in one day

 *** Rome was not built in one day

"It is taking me a long time to speak English fluently ." Answer: "Rome was not built in one day."

I don't mind how long it will take to a student of mine speak in English fluently. I know that some people  take a little long to understand some structures. I mean , I'm not in a hurry to get results...cos' at the end I know they will get it. Rome was not built in one day.