It is said that back in the middle ages, university students from various regions who communicated with one another in Latin came up with this intriguing phrase:
"Lingua Latina non verpa canina est."
There are variations of this phrase, which means, roughly, "The Latin Language isn't a dog's dick."
Meaning there's a pretty steep learning curve when it comes to mastering Latin.
Can you think of something similar in English? "No small potatoes," yes, but with a bit more thrust?