柠檬酸不及心酸薄荷凉不及心凉
[níng méng suān bù jí xīn suān bó hé liáng bù jí xīn liáng]
Lemon’s sourness does not match the aching of heart; mint's chill can not compare to inner coolness. It conveys a sense of sadness beyond physical senses - it means that emotional hurt outperforms tangible pain