I'm trying to achieve the sentence:
One day you will achieve great things.
This could potentially be translated as:
Magna olim conficies.
But the first thing that I tried to do was to use the phrase "One day" or "Uno die" like this:
Magna uno die conficies.
Which I'm not really sure if it would mean what I'm trying to achieve.
Would Romans understand this phrase, and would modern Latin speakers understand this?