Either you are just or unjust. If you are just, then you will not keep aloof from the people, but will listen to them and meet their requirements. But if you are unjust, the people themselves will keep away from you.

Be a good man to Allah and a bad man to yourself (desires); and be one of the commoners among the people

If you find that somebody is not grateful for all that you have done for him, then do not get disappointed because often you will find that someone else feels under your obligation though you have done nothing for him and thus your good deeds will be compensated, and Allah will reward you for your goodness.

Contentment is a wealth that is never exhausted

"The best form of devotion to the service of Allah is not to make a show of it."

The worst of our faults is our interest in other people's faults.

No one has ever suffered from his people as I have.