shì / dù / de / huái / yí / kě / yǐ / bǎo / hù / zì / jǐ / dàn / yí / xīn / bìng / huì / yǐng / xiǎng / rén / jì / guān / xì

适度的怀疑可以保护自己，但疑心病会影响人际关系。

Moderate caution can protect you, but excessive suspicion can harm relationships.