Robert Christy, comp. Proverbs, Maxims and Phrases of All Ages. 1887.
Frog
Even a frog would bite if it had teeth.Italian.
Like frogs in a well. (Applied in Japan to those opposed to intercourse with foreigners.)
The frog cannot get out of her bog.
The frog does not bite because it cannot.Italian.
The frog enjoys himself in water but not in hot water.West African.
The frog flew into a passion and the pond knew nothing about it.Modern Greek.
The frog learns his croak from himself.German.
The frog will jump back into the pool,
Although it sits on a golden stool.Dutch.
Where the swamps are wanting, frogs are wanting.German.