By the sun and its brightness,
And the moon which follows it,
And by the day when it reveals its glory,
And by the night when it shrouds it (the sun),
And by the sky and Him who set it,
And by the earth and Him who stretches it forth,
And by the soul and Him who balanced it,
He hath endowed it with the talent to distinguish wickedness from righteousness,
(We state with certainty that) he indeed shall be successful who keeps it pure,
And indeed is undone who corrupts it.

(Quran 91#1-12)