我知道你的长短所以我爱我知道你的深浅所以我爱
[wŏ zhī dào nĭ de zhăng duăn suŏ yĭ wŏ ài wŏ zhī dào nĭ de shēn qiăn suŏ yĭ wŏ ài]
Means the depth and extent of understanding ('your pros and cons/longs and shorts', and 'how deeply') determine one's ability to love. Expresses unconditional acceptance based on comprehensive understanding of someone.