Many cakes are beautiful on the surface, but have crappy fillings.
More Finnish Proverbs:
Roll me, don't curse me, said the stone to the ploughman.Finnish
Cleanliness is half a meal.
Finnish
The world is a good teacher, but it charges a huge fee.
Finnish
No need to plough and sow madmen, they grow by themselves.
Finnish
Even a stupid one seems wise if he keeps his mouth shut.
Finnish
You don't get anywhere if you run in your thoughts.
Finnish