الْيَوْمَ عَمَلٌ، وَغَدًا ثَمَرَةٌ.
Today is for action; tomorrow brings fruit.
The balanced clauses contrast present effort with future results. “Fruit” may figuratively represent outcomes, joining economy with a light image, but the statement is not a factual guarantee that every effort must succeed tomorrow.
In an exhortation the brevity is useful. In an operational instruction the same slogan might omit essential owners, dates or steps. Whether concision is eloquent depends on its task.