1) من جدّ وجد و من زرع حصد= mn jdda wajad wa mn zara3a 7a9ad. who works hard will find a good resut and who plants will harvest i think it's clear where to use it, work hard to find a good result. 2) من طلب العلا [-العلى-]سهر اللّيالي = mn 6alaba al 3ola sahera alleali write it العلا not who wants to achieve honor , success , high social class , should work hard for it even don't sleep all nights . 3) خير الكلام ما قلّ و دلّ= khiro alkalami ma 8ala wa dal best speech is to talk few words that give you the meaning you seek . speak what just needed no more .