One word let slip and four horses would fail to catch it.
More Japanese Proverbs:
He who is too servile ruins his back.Japanese
Happiness rarely keeps company with an empty stomach.
Japanese
The world is the world for the world.
Japanese
Unhappiness can be a bridge to happiness.
Japanese
Parents and children teach one another.
Japanese
Don't rejoice over him that goes, before you see him that comes.
Japanese