Imam Musa Al-Kadhim (as) and Modesty:

One day 7th Imam, Imam Musa Al-Kadhim (as) was passing by the tent of
a Nomad who was a black man. Imam Musa Al-Kadhim (as) went up to him
and said "Salam Alaikum", in a warm and friendly manner.
Upon leaving Imam Musa Al-Kadhim (as) said good-bye to him in a very
kind manner with these words: "If there is anything I can do for you,
I'm more than willing to do it".
One of the followers of 7th Imam, Imam Musa Al-Kadhim (as) who saw
this attitude said "Is it suitable for you, the son of the messenger
of Allah (SWT), to sit and talk with a man of no reputation and make
such an offer as: If you need me in any work, I'm more than willing to
do it? Is it right for a man of great dignity to talk to a man like
that?"
7th Imam, Imam Musa Al-Kadhim (as) replied, "This is one of Allah's
creatures. Allah (SWT) has created all men equal. Besides, as a
Muslim, he is our brother in faith. After all, life does not remain
the same forever. One who needs help today may be the one who will be
able to help us tomorrow when we'll need help! If we don't pay any
attention to him today, one day when we may need him we will be
embarrassed to ask him for help".
Moral: In Islam everyone is equal. Allah (SWT) is the giver of
things, so what you may have today, someone else may have tomorrow.