世态炎凉人心叵测
[shì tài yán liáng rén xīn pŏ cè]
'世态炎凉人心叵测' translates to 'the world is cruel and the human heart hard to fathom,' indicating cynicism and a pessimistic outlook on society and relationships. The bearer might express distrust towards social interactions or disappointment in the way people treat each other due to experiencing hardships.