Abu Hamid al-Ghazālī

“ There are two kinds of achievements. One is the virtue of truth, and the other falsehood. Whosoever raises himself upon Him attains truth whilst the other, who values worldly objects more than Him, achieves nothing but falsehood. ”

“ It is then that you will be turned towards a rank which is more honorable and rewarded with a feeling of self- sufficiency at which time the doors of salvation will be opened to you as explained in the sayings of the Prophet, praise and peace be upon him. ”

“ When it is a blessing, His worshipers devoted themselves to thanksgiving , and when it is a calamity they either show patience or try to cultivate patience and alliance with Allah endeavoring to earn His pleasure, so that their lives may become harmonious to His Planning Will. ”

“ Koran, Chapter 24 verse 39
As this world is a means for reaching the next, a wise and enlightened person does not make the means and end in itself. Whosoever sells this world for the next stands condemned.
The Caliph, Omar bin Abdul Aziz was a practical moralist. Even before he was elected caliph, he would say when a piece of very expensive cloth was brought to him: "Alas, it is too coarse for me to wear". However, after his election when an inexpensive robe was brought for him, he would say: "Alas, it is too fine for me to wear. ”

“ He is the father of religious society, a mystical society. He is an elderly man and too weak to earn a livelihood. He has faced not only hardship but arduous labor, and ill treatment, all of which have contributed to his ill-health. ”