A single arrow is easily broken; a quiver of ten is not.
More Japanese Proverbs:
Fear blows wind into your sails.Japanese
A centipede, though dead, will not fall.
Japanese
It is a blessing in disguise.
Japanese
An ant's nest could bring down a hill.
Japanese
The speaker may well be a fool but the listener is wise.
Japanese
Beaten with his own rod.
Japanese