心不动则不痛心不动则不离
[xīn bù dòng zé bù tòng xīn bù dòng zé bù lí]
The phrase reflects an emotionally protective stance – if the heart doesn't move (emote/react/passionately love), it won’t hurt nor will it depart. Essentially, advocating emotional non-involvement as a way to protect oneself from pain or loss.