心不痛则不爱情不动则不乱
[xīn bù tòng zé bù ài qíng bù dòng zé bù luàn]
If the heart doesn't ache, it’s not truly love; if the mind isn’t moved, it doesn’t go astray. This reflects the belief that genuine emotions and actions come from pain and disturbance, suggesting deep emotional experiences define true love.