There was an old man who had farmed his crops for many years. One day his horse ran away. On hearing the news, his neighbours came to commiserate with him. “What bad luck”, they said.
“Maybe”, the farmer replied.
The next morning, the horse returned, and along with it were three other wild horses. “How wonderful!”, the neighbours cried.
“Maybe”, replied the old man.
The following day, his son tried to ride one of the untamed horses. He was thrown off, and broke his leg. The neighbours again said how unfortunate he was.
“Maybe”, answered the farmer.
The day after, military officials came to the village to draft young men into the army. Seeing that the son’s leg was broken, they passed him by. “How lucky you are that they spared your son!”, the neighbours said.
“Maybe”, said the farmer.
Or, as William Shakespeare wrote in Hamlet:
There is nothing either good or bad, but thinking makes it so