suggests that
You should do nothing when you are not sure; if you are being pressured into doing something, or when you are unsure or doubtful, better to be cautious and do nothing.
similar to
When in doubt, don't
proverb
suggests that
You should do nothing when you are not sure; if you are being pressured into doing something, or when you are unsure or doubtful, better to be cautious and do nothing.
similar to
When in doubt, don't