The perfection of wisdom, and the end of true philosophy is to proportion our wants to our possessions, our ambitions to our capacities, we will then be a happy and a virtuous people.
First, have a definite, clear practical ideal; a goal, an objective. Second, have the necessary means to achieve your ends; wisdom, money, materials, and methods. Third, adjust all your means to that end.
Remember your contemporaries who have passed away and were your age. Remember the honors and fame they earned, the high posts they held, and the beautiful bodies they possessed. Today all of them are turned to dust. They have left orphans and widows behind them, their wealth is being wasted, and their houses turned into ruins.
No sign of them is left today, and they lie in dark holes underneath the earth.
Picture their faces before your mind's eye and ponder.
I complained to Waki' about the weakness of my memorisation,
So he instructed me to abandon disobedience;
He informed me that knowledge is a light,
And the light of Allah is not given to a sinner.
If we take care of the means, we are bound to reach the end sooner or later. When once we have grasped this point, final victory is beyond question. Whatever difficulties we encounter, whatever apparent reverses we sustain, we may not give up the quest for truth.
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