A frog in the well knows not the ocean.
More Japanese Proverbs:
Even when our sleeves brush together it is our karma.Japanese
Respect old people, and be gentle with children.
Japanese
An ant hole may collapse an embankment.
Japanese
Looking up we are not ashamed in the presence of heaven, nor bowing down are we ashamed in the presence of earth.
Japanese
He who smells does not know it himself.
Japanese
The child who died too soon was always beautiful and intelligent.
Japanese