心太小只装一人心太大愿装一人
[xīn tài xiăo zhĭ zhuāng yī rén xīn tài dà yuàn zhuāng yī rén]
Reflecting on matters of heart and affection; the first part indicates the depth of loyalty or devotion toward only one person, while the latter implies that despite a larger capacity for love, the desire remains focused on that single person.