男人不狠何以站稳女人不毒何以立足
[nán rén bù hĕn hé yĭ zhàn wĕn nǚ rén bù dú hé yĭ lì zú]
'If a man isn’t ruthless, how can he stand firm? If a woman isn't heartless, how can she be established?' It implies a tough mindset needed for success in competitive or challenging environments, emphasizing assertiveness.