It is better to be ignorant than mistaken.
More Japanese Proverbs:
A dying man discovers the honesty with which he was born.Japanese
Don't take seriously the cat who mourns for a mouse.
Japanese
To ask is a temporary shame; not to ask, an eternal one.
Japanese
Generals conquer, soldiers are killed.
Japanese
The day you decide to do it is your lucky day.
Japanese
The crow that mimics a cormorant gets drowned.
Japanese