بنی آدم اعضایِ یکدیگرند

که در آفرینش ز یک گوهرند


The children of Adam are all members of one.

For in [our] creation, they are from a single source. 

Sa'di, Golestān, Bāb-e avval dar Sirat-e Pādeshāhān, Hekāyat no. 10