Vietnamese - Vietnam - Vietnamese
Co cong mai sat co ngay nen kim.
If you keep grinding iron, one day it becomes a needle.
Meaning
Persistent effort can turn a hard task into success.
Literal translation
Work iron long enough and it becomes a needle.
Usage example
Co cong mai sat co ngay nen kim, dung bo cuoc.
If you keep grinding iron, it becomes a needle; do not give up.
Cultural context
Used to encourage determination.