One can’t shoe a running horse.
More Dutch Proverbs:
Men must sail while the wind serveth.Dutch
Set a beggar on horseback, and he don't trot, but gallops.
Dutch
Roses fall, but the thorns remain.
Dutch
A good fire makes a quick cook.
Dutch
Where the bird was hatched it haunts.
Dutch
Two cocks in one house, a cat and a mouse, an old man and young wife, are always in strife.
Dutch