The heart inside of a pumpkin or edible squash is only known by the knife.
More Spanish Proverbs:
The mountain labored and brought forth a mouse.Spanish
The best cloth has uneven threads.
Spanish
When every one says you are an ass, bray.
Spanish
He who peeps through a hole will discover his dole.
Spanish
He who is everybody's friend is either very poor or very rich.
Spanish
He who goes far from home to marry, goes either to deceive or be deceived.
Spanish