情深者必先亡多情者必先伤
[qíng shēn zhĕ bì xiān wáng duō qíng zhĕ bì xiān shāng]
This means 'Those who love deeply perish first; those who are passionate are hurt most.' It suggests a belief that having deep feelings exposes oneself to more potential pain and vulnerability, as emotional investments in relationships could end up being harmful.