孤独成性厌恶人心
[gū dú chéng xìng yàn è rén xīn]
Translated as 'habituated to solitude, disgusted by human hearts', this expresses an aversion to crowds or complex social relations due to frequent loneliness. This individual might consider people untrustworthy or insincere, preferring their solitary lifestyle rather than deal with complicated matters in daily life.