女子汉只在夜里哭
[nǚ zi hàn zhĭ zài yè lĭ kū]
Literally, 'Tough girl cries only at night.' The phrase expresses that a strong woman or someone acting tough outwardly can only allow herself to cry in secret during nighttime. It highlights the duality of strength and vulnerability often experienced by individuals trying to conform to social norms.