The fertile field becomes sterile without rest.
More Spanish Proverbs:
Sow corn in clay, and plant vines in sand.Spanish
If the peacock were to look at its feet, it would stop him strutting.
Spanish
How beautiful it is to do nothing, and then rest afterward.
Spanish
When God pleases, it rains with every wind.
Spanish
Before the time, great courage; when at the point, great fear.
Spanish
Never let a poor man advise you on investments.
Spanish