اُطْلُبُوا اَلْعِلْمَ وَ تَزَيَّنُوا مَعَهُ بِالْحِلْمِ وَ اَلْوَقَارِ وَ تَوَاضَعُوا لِمَنْ تُعَلِّمُونَهُ اَلْعِلْمَ وَ تَوَاضَعُوا لِمَنْ طَلَبْتُمْ مِنْهُ اَلْعِلْمَ وَ لاَ تَكُونُوا عُلَمَاءَ جَبَّارِينَ فَيَذْهَبَ بَاطِلُكُمْ بِحَقِّكُمْ . Seek knowledge and adorn it with patience and respect; moreover, be humble towards the one who is taught by you and be humble towards your teacher, and don't be arrogant towards the scholars, so that your false behavior will spoil your rights.
Al-Kafi, vol. 1, page 36
Imam Ja'far ibn Muhammad al-Sadiq (peace be upon him)Hadith