because such people intend to show themselves superior to theothers in any way, and so try to create some weak points for the others in the environment of their mind, and devaluate them through different probabilities, and elevate their own value.

5- Educational environment and suggestions of parents andteacher are also important causes of pessimism and suspicion.

6- Association with unrighteous individuals too is one of thecauses of suspicion, because the criterion for general judgementsof man is often a defective induction which he makes about theindividuals dealing with them, as judgements of persons aboutthe people of a city or a village or a country is based on thespecial individuals having contact with them.

If the associates of a man are unrighteous, he will naturallybecome pessimistic to all people.

It is mentioned in Islamic traditions:.

«مُجالَسَةُ الْاشْرارِ تُورِثُ سُوءَ الظَّنِّ بِالْاخْيارِ» ..

Association with evildoers causes suspicion in therighteous.. [1]

7- Sometimes suspicion has a real source, that is whencorruption dominates on the people of a certain time or place, so that a man becomes suspicious to every thing based on this intellectual principle that" Suspicion connects everything to its popular sample"

الظن يلحق الشي‌ء بالاعم الاغلب‌

Social losses of mistrust

Social losses of this moral vice are too much and itsundesirable effects are widespread and extensive, such as: 1- Suspicion causes social misunde rstanding, as those

[1]Majlessi ,BeharolAnvar ,791 /47 ,narration 13