Even if a mountain is high, there is always a way to reach the top -- and although the way might be full of danger, there is always a way for someone to get through it. (Vietnamese Proverb)
No matter how sharp it is, a knife will never cut it's own handle. (Vietnamese Proverb)
A frog living at the bottom of the well thinks that the sky is as small as a cooking pot lid. (Vietnamese Proverb)