It is not good for all our wishes to be filled;
through sickness we recognize the value of health;
. through evil, the value of good;.
through hunger, the value of food; .
through exertion, the value of rest.
That's to say :
When u have a glass with water till it's half ,, just think positive about it , don't say that : HALF OF GLASS IS EMPTY,,But :HALF OF THE GLASS IS WITH WATER ..