hadith====

Imam al-Kazim (AS) was once asked who one's archenemy is that one must fight, to which he replied, 'It is he who is closest to you and yet harbours the most enmity towards you … and he who provokes all your enemies against you, and he is Iblis [Satan].’
الإمامُ الكاظمُ (عَلَيهِ الّسَلامُ) ـ لمّا سُئلَ عن أوجَبِ الأعداءِ مُجاهَدةً ـ: أقرَبُهم إلَيكَ وأعداهُم لَكَ... ومَن يُحَرِّضُ أعداءَكَ علَيكَ ، وهُو إبليسُ.
Tuhaf Al-`Uqoul, No. 399


The Prophet (SAWA) said, ‘The first to enter the Fire will be a domineering ruler who did not maintain justice, a rich man possessing wealth who does not give his due from his wealth, and a poor man who is arrogant.’
رسولُ اللهِِ (صَلَّيَ اللهُ عَلَيهِ وَ آلِهِ) : أوَّلُ مَن يَدخُلُ النّارَ أميرٌ مُتَسلّطٌ لم يَعْدِلْ، وذو ثَرْوَةٍ من المالِ لَم يُعْطِ المالَ حقَّهُ ، وفَقيرٌ فَخورٌ
Uyoun Akhbar Al-Ridha (As), V. 2, P. 28, No. 20

Imam Ali (AS) said, ‘A kind deed you do for a person is kindness done towards yourself, through which you decorate your own honour. So, do not seek thanks from someone else for what you have done for yourself.’
الإمامُ عليٌّ (عَلَيهِ الّسَلامُ): إنَّ مَكرُمَةً صَنَعتَها إلى أحَدٍ مِن النّاسِ إنّما أكرَمتَ بها نفسَكَ وزَيَّنتَ بها عِرضَكَ، فلا تَطلُبْ مِن غيرِكَ شُكرَ ما صَنَعتَ إلى نفسِكَ.
Ghurar Al-Hikam, No. 3542


The Prophet (SAWA) said, 'There is a remedy for every ailment, and the remedy for sins is seeking forgiveness.’
رسولُ اللهِِ (صَلَّيَ اللهُ عَلَيهِ وَ آلِهِ): لِكُلِّ داءٍ دواءٌ ، ودواءُ الذُّنوبِ الاستِغفارُ.
Mustadrak Al-Wasail, V. 5, P. 316, No. 5972


The Prophet (SAWA) said, ‘A strong person is not one who overcomes people, but a strong person is one who overcomes his own self.’
رسولُ اللهِ (صَلَّيَ اللهُ عَلَيهِ وَ آلِهِ): إنّ الشَّديدَ لَيسَ مَن غَلَبَ النّاسَ، ولكِنَّ الشَّديدَ مَن غَلَبَ على نَفسِهِ .
Tanbih Al-Khawatir, V. 2, P. 10