An idiot is eloquent when he stays silent.
More Japanese Proverbs:
Even the stone you trip on is part of your destiny.Japanese
Unspoken words are the flowers of silence.
Japanese
Beginning is easy -- to keep going is hard.
Japanese
A man of straw is still a man.
Japanese
Serve your neighbors as you would be served yourself.
Japanese
Pursue your duties and don't let them pursue you.
Japanese