Hawzah News Agency – The commander of the faithful, Imam Ali peace be upon him says:

حُسنُ الأدبِ أفضلُ نَسَبٍ وأشرفُ سَبَبٍ.

'Good manners are the best lineage and the noblest means.'

Source: Ghurar al-Hikam, no. 4853