何苦自编自演自欺欺人何必自残自伤自欺欺人
[hé kŭ zì biān zì yăn zì qī qī rén hé bì zì cán zì shāng zì qī qī rén]
This translates roughly to 'Why go through the trouble of playing make-believe and lying both to yourself and to others? Why harm oneself in a similar vein?' Conveys a sense of futility and distress about one's behavior patterns that involve deception.