The highest person is he who is of most use to humankind.

When proven wrong, the wise man will correct himself and the ignorant will keep arguing.

Do for this life as if you live forever, do for the afterlife as if you will die tomorrow.

Don't engage your heart in grief over the past or you wont be ready for what is coming.

Do not be like those on whom advice has no effect and who require punishment to correct themselves.

Man comes from a drop of semen and leaves as a piece of dust. He doesn't know when he came and he doesn't know when he's leaving, yet he walks on the earth thinking he knows everything.

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.