A man retired to a monastery after taking vows of silence.

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For five years, he would not be allowed to speak.

Then he would be allowed two words.

After another five years, he would be allowed two more words.

Five years passed, and the man said to the abbot:

‘Hard beds.’

Five more years passed, and the man said to the abbot:

‘Bad food.’

After the fifteenth year, he said:

‘I quit.’

The abbot said:

‘It is a good thing. All you have done here is complain!’