If the work had an end, your grandfather would have already finished it.

Folk proverb—Many people, at first, will think that this folk proverb is used to express the idea that the work or task being discussed is endless or very difficult to complete. But the truth is very different. People keep working and think that they will succeed and that there will be an end to it someday. But when their strength leaves them, they realize that no matter what they have done, there is still no end. Therefore, a person should also find time for their family and friends.