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.
Al-GhazaliHe who buries his head deep into a nosebag full of food cannot hope to see the invisible world.
Al-GhazaliWork for your terrestrial life in proportion to your location in it, and work for your afterlife in proportion to your eternity in it.
Al-GhazaliDoes money upset the hearts of learned men? He answered, "men whose hearts are changed by money are not learned"
Al-Ghazali