有些事未必经历了就会懂有些人未必经历了就会痛
[yŏu xiē shì wèi bì jīng lì le jiù huì dŏng yŏu xiē rén wèi bì jīng lì le jiù huì tòng]
This longer statement implies that sometimes one might understand things without having to experience them directly, and some people cause pain without personal experiences. This is reflective on learning from observation rather than participation.