有些人看清了也就看轻了
[yŏu xiē rén kàn qīng le yĕ jiù kàn qīng le]
It means after getting to truly understand some people ('seeing clearly'), you end up undervaluing or losing interest in them ('seeing lightly'). It expresses disillusionment; when illusions about a person are dispelled, admiration diminishes, resulting in indifference or disregard.