本是戏何必演得那么真
[bĕn shì xì hé bì yăn dé nèi me zhēn]
The phrase means 'since it's just a play, why perform it so sincerely?' It reflects a cynical attitude towards life, love, or certain situations, suggesting that there’s no need to take everything so seriously as it might only be fleeting or trivial in the bigger picture.