O youth.......be assured that knowledge alone does not strengthen the hand......Though a man read a hundred thousand scientific questions and understood them or learned them, but did not work with them---They do not benefit him except by working.....Knowledge is the tree, and working is its fruit; and though you studied a hundred years and assembled a thousand books, you would not be prepared for the mercy of Allah the Exalted except by working.
Know, O beloved, that man was not created in jest or at random, but marvelously made and for some great end. Although he is not form everlasting, yet he lives for ever; and though his body is mean and earthly, yet his spirit is lofty and divine
Neglect 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.
The soul should take care of the body, just as the pilgrim on his way to Makkah takes care of his camel; but if the pilgrim spends his whole time in feeding and adorning his camel, the caravan will leave him behind, and he will perish in the desert.
Dear friend,
Your heart is a polished mirror. You must wipe it dean of the veil of dust that has gathered upon it, because it is destined to reflect the light of divine secrets.
Do not fix hopes on your health, and do not laugh away life. Remember how they walked and now all their joints lie separately, and the tongue with which they talked lightly is eaten away by the worms
Declare your jihad on thirteen enemies you cannot see - Egoism, Arrogance, Conceit, Selfishness, Greed, Lust, Intolerance, Anger, Lying, Cheating, Gossiping and Slandering. If you can master and destroy them, then will be ready to fight the enemy you can see.
Men have such a good opinion of themselves, of their mental superiority and intellectual depth; they believe themselves so skilled in discerning the true from the false, the path of safety from those of error, that they should be forbidden as much as possible the perusal of philosophic writings.