一生只要一人同白头一世仅要一心共甘苦
[yī shēng zhĭ yào yī rén tóng bái tóu yī shì jĭn yào yī xīn gòng gān kŭ]
A romantic sentiment: 'In life, I need only one person to grow old with, in the world, I only wish for one heart to share in both happiness and hardship.' This reflects loyalty and deep commitment in love relationships.