Man's nature is made up of four elements, which produce in him four attributes, namely, the beastly, the brutal, the satanic, and the divine. In man there is something of the pig, the dog, the devil, and the saint.
Al-GhazaliNeglect not your time, nor use it haphazardly; on the contrary you should bring yourself to account. Structure your litanies and other practices during each day and night. This is how to bring about the spiritual blessing (baraka) in each period. If each of your breaths is a priceless jewel, Be not like the deceived fools who are joyous because each day their wealth increases while their life grows ever shorter.
Al-Ghazali