"It might be good, it might be bad who's to say?"
A man's wife gave birth to a son. Many villagers visited to say 'Congratulations! You must be overjoyed!' The man said "It might be good, it might be bad who's to say?"
The people didn't understand his lack of joy.
Years later the man's son lost a leg. The villagers visited with their sympathies for his misfortune.
The man said "It might be good, it might be bad who's to say?"
Again these people didn't understand how he could not think this a tragedy and thought him callous not to be sad.
A few years later war broke out, all the young village men were drafted, except this young man's son.
The villagers said nothing. The man was revered as a sage.
I like this story as it's a positive reminder sometimes that which seems bad is a blessing in disguise, with hindsight.